diff --git a/internal/datasource/list_nested_attribute.go b/internal/datasource/list_nested_attribute.go
index d56cbc88..dc5f7e23 100644
--- a/internal/datasource/list_nested_attribute.go
+++ b/internal/datasource/list_nested_attribute.go
@@ -170,7 +170,13 @@ func (g GeneratorListNestedAttribute) GetAttributes() schema.GeneratorAttributes
 	return g.NestedObject.Attributes
 }
 
-func (g GeneratorListNestedAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorListNestedAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -223,7 +229,7 @@ func (g GeneratorListNestedAttribute) CustomTypeAndValue(name string) ([]byte, e
 	// CustomTypeAndValue interface.
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/datasource/list_nested_block.go b/internal/datasource/list_nested_block.go
index 18f614c9..9d84e660 100644
--- a/internal/datasource/list_nested_block.go
+++ b/internal/datasource/list_nested_block.go
@@ -181,7 +181,13 @@ func (g GeneratorListNestedBlock) GetBlocks() schema.GeneratorBlocks {
 	return g.NestedObject.Blocks
 }
 
-func (g GeneratorListNestedBlock) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorListNestedBlock) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -285,7 +291,7 @@ func (g GeneratorListNestedBlock) CustomTypeAndValue(name string) ([]byte, error
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
@@ -297,13 +303,15 @@ func (g GeneratorListNestedBlock) CustomTypeAndValue(name string) ([]byte, error
 
 	for _, k := range blockKeys {
 		if c, ok := g.NestedObject.Blocks[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
 			}
 
 			buf.Write(b)
+
+			continue
 		}
 	}
 
diff --git a/internal/datasource/map_nested_attribute.go b/internal/datasource/map_nested_attribute.go
index 6c3e6c2c..a1014562 100644
--- a/internal/datasource/map_nested_attribute.go
+++ b/internal/datasource/map_nested_attribute.go
@@ -170,7 +170,13 @@ func (g GeneratorMapNestedAttribute) GetAttributes() schema.GeneratorAttributes
 	return g.NestedObject.Attributes
 }
 
-func (g GeneratorMapNestedAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorMapNestedAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -223,7 +229,7 @@ func (g GeneratorMapNestedAttribute) CustomTypeAndValue(name string) ([]byte, er
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/datasource/set_nested_attribute.go b/internal/datasource/set_nested_attribute.go
index 41a477c1..68d78739 100644
--- a/internal/datasource/set_nested_attribute.go
+++ b/internal/datasource/set_nested_attribute.go
@@ -170,7 +170,13 @@ func (g GeneratorSetNestedAttribute) GetAttributes() schema.GeneratorAttributes
 	return g.NestedObject.Attributes
 }
 
-func (g GeneratorSetNestedAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorSetNestedAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -223,7 +229,7 @@ func (g GeneratorSetNestedAttribute) CustomTypeAndValue(name string) ([]byte, er
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/datasource/set_nested_block.go b/internal/datasource/set_nested_block.go
index 4a2c6d93..4e4f56fc 100644
--- a/internal/datasource/set_nested_block.go
+++ b/internal/datasource/set_nested_block.go
@@ -181,7 +181,13 @@ func (g GeneratorSetNestedBlock) GetBlocks() schema.GeneratorBlocks {
 	return g.NestedObject.Blocks
 }
 
-func (g GeneratorSetNestedBlock) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorSetNestedBlock) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -285,7 +291,7 @@ func (g GeneratorSetNestedBlock) CustomTypeAndValue(name string) ([]byte, error)
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
@@ -297,13 +303,15 @@ func (g GeneratorSetNestedBlock) CustomTypeAndValue(name string) ([]byte, error)
 
 	for _, k := range blockKeys {
 		if c, ok := g.NestedObject.Blocks[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
 			}
 
 			buf.Write(b)
+
+			continue
 		}
 	}
 
diff --git a/internal/datasource/single_nested_attribute.go b/internal/datasource/single_nested_attribute.go
index cfaa8e5f..ff6dff3b 100644
--- a/internal/datasource/single_nested_attribute.go
+++ b/internal/datasource/single_nested_attribute.go
@@ -163,7 +163,13 @@ func (g GeneratorSingleNestedAttribute) GetAttributes() schema.GeneratorAttribut
 	return g.Attributes
 }
 
-func (g GeneratorSingleNestedAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorSingleNestedAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.Attributes.AttrValues()
@@ -216,7 +222,7 @@ func (g GeneratorSingleNestedAttribute) CustomTypeAndValue(name string) ([]byte,
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/datasource/single_nested_block.go b/internal/datasource/single_nested_block.go
index 6107caab..38b8068f 100644
--- a/internal/datasource/single_nested_block.go
+++ b/internal/datasource/single_nested_block.go
@@ -194,7 +194,13 @@ func (g GeneratorSingleNestedBlock) GetBlocks() schema.GeneratorBlocks {
 	return g.Blocks
 }
 
-func (g GeneratorSingleNestedBlock) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorSingleNestedBlock) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.Attributes.AttrValues()
@@ -298,7 +304,7 @@ func (g GeneratorSingleNestedBlock) CustomTypeAndValue(name string) ([]byte, err
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
@@ -310,7 +316,7 @@ func (g GeneratorSingleNestedBlock) CustomTypeAndValue(name string) ([]byte, err
 
 	for _, k := range blockKeys {
 		if c, ok := g.Blocks[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/provider/list_nested_attribute.go b/internal/provider/list_nested_attribute.go
index f8fd788c..547c7532 100644
--- a/internal/provider/list_nested_attribute.go
+++ b/internal/provider/list_nested_attribute.go
@@ -170,7 +170,13 @@ func (g GeneratorListNestedAttribute) GetAttributes() schema.GeneratorAttributes
 	return g.NestedObject.Attributes
 }
 
-func (g GeneratorListNestedAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorListNestedAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -223,7 +229,7 @@ func (g GeneratorListNestedAttribute) CustomTypeAndValue(name string) ([]byte, e
 	// CustomTypeAndValue interface.
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/provider/list_nested_block.go b/internal/provider/list_nested_block.go
index 4eb2515e..13c703a1 100644
--- a/internal/provider/list_nested_block.go
+++ b/internal/provider/list_nested_block.go
@@ -181,7 +181,13 @@ func (g GeneratorListNestedBlock) GetBlocks() schema.GeneratorBlocks {
 	return g.NestedObject.Blocks
 }
 
-func (g GeneratorListNestedBlock) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorListNestedBlock) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -285,7 +291,7 @@ func (g GeneratorListNestedBlock) CustomTypeAndValue(name string) ([]byte, error
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
@@ -297,13 +303,15 @@ func (g GeneratorListNestedBlock) CustomTypeAndValue(name string) ([]byte, error
 
 	for _, k := range blockKeys {
 		if c, ok := g.NestedObject.Blocks[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
 			}
 
 			buf.Write(b)
+
+			continue
 		}
 	}
 
diff --git a/internal/provider/map_nested_attribute.go b/internal/provider/map_nested_attribute.go
index a2671708..1fe12ddd 100644
--- a/internal/provider/map_nested_attribute.go
+++ b/internal/provider/map_nested_attribute.go
@@ -170,7 +170,13 @@ func (g GeneratorMapNestedAttribute) GetAttributes() schema.GeneratorAttributes
 	return g.NestedObject.Attributes
 }
 
-func (g GeneratorMapNestedAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorMapNestedAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -223,7 +229,7 @@ func (g GeneratorMapNestedAttribute) CustomTypeAndValue(name string) ([]byte, er
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/provider/set_nested_attribute.go b/internal/provider/set_nested_attribute.go
index 1d169c79..488c861a 100644
--- a/internal/provider/set_nested_attribute.go
+++ b/internal/provider/set_nested_attribute.go
@@ -170,7 +170,13 @@ func (g GeneratorSetNestedAttribute) GetAttributes() schema.GeneratorAttributes
 	return g.NestedObject.Attributes
 }
 
-func (g GeneratorSetNestedAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorSetNestedAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -223,7 +229,7 @@ func (g GeneratorSetNestedAttribute) CustomTypeAndValue(name string) ([]byte, er
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/provider/set_nested_block.go b/internal/provider/set_nested_block.go
index eb0ad1a8..38dc665f 100644
--- a/internal/provider/set_nested_block.go
+++ b/internal/provider/set_nested_block.go
@@ -181,7 +181,13 @@ func (g GeneratorSetNestedBlock) GetBlocks() schema.GeneratorBlocks {
 	return g.NestedObject.Blocks
 }
 
-func (g GeneratorSetNestedBlock) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorSetNestedBlock) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -285,7 +291,7 @@ func (g GeneratorSetNestedBlock) CustomTypeAndValue(name string) ([]byte, error)
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
@@ -297,13 +303,15 @@ func (g GeneratorSetNestedBlock) CustomTypeAndValue(name string) ([]byte, error)
 
 	for _, k := range blockKeys {
 		if c, ok := g.NestedObject.Blocks[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
 			}
 
 			buf.Write(b)
+
+			continue
 		}
 	}
 
diff --git a/internal/provider/single_nested_attribute.go b/internal/provider/single_nested_attribute.go
index 831b0cd3..4c6daf8c 100644
--- a/internal/provider/single_nested_attribute.go
+++ b/internal/provider/single_nested_attribute.go
@@ -163,7 +163,13 @@ func (g GeneratorSingleNestedAttribute) GetAttributes() schema.GeneratorAttribut
 	return g.Attributes
 }
 
-func (g GeneratorSingleNestedAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorSingleNestedAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.Attributes.AttrValues()
@@ -216,7 +222,7 @@ func (g GeneratorSingleNestedAttribute) CustomTypeAndValue(name string) ([]byte,
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/provider/single_nested_block.go b/internal/provider/single_nested_block.go
index d493fa20..26cb92a3 100644
--- a/internal/provider/single_nested_block.go
+++ b/internal/provider/single_nested_block.go
@@ -194,7 +194,13 @@ func (g GeneratorSingleNestedBlock) GetBlocks() schema.GeneratorBlocks {
 	return g.Blocks
 }
 
-func (g GeneratorSingleNestedBlock) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorSingleNestedBlock) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.Attributes.AttrValues()
@@ -298,7 +304,7 @@ func (g GeneratorSingleNestedBlock) CustomTypeAndValue(name string) ([]byte, err
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
@@ -310,7 +316,7 @@ func (g GeneratorSingleNestedBlock) CustomTypeAndValue(name string) ([]byte, err
 
 	for _, k := range blockKeys {
 		if c, ok := g.Blocks[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/resource/bool_attribute.go b/internal/resource/bool_attribute.go
index 28481431..761a051c 100644
--- a/internal/resource/bool_attribute.go
+++ b/internal/resource/bool_attribute.go
@@ -159,7 +159,13 @@ func (g GeneratorBoolAttribute) ModelField(name generatorschema.FrameworkIdentif
 	return field, nil
 }
 
-func (g GeneratorBoolAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorBoolAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	if g.AssociatedExternalType == nil {
 		return nil, nil
 	}
diff --git a/internal/resource/float64_attribute.go b/internal/resource/float64_attribute.go
index d5673c69..be1e1423 100644
--- a/internal/resource/float64_attribute.go
+++ b/internal/resource/float64_attribute.go
@@ -159,7 +159,13 @@ func (g GeneratorFloat64Attribute) ModelField(name generatorschema.FrameworkIden
 	return field, nil
 }
 
-func (g GeneratorFloat64Attribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorFloat64Attribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	if g.AssociatedExternalType == nil {
 		return nil, nil
 	}
diff --git a/internal/resource/int64_attribute.go b/internal/resource/int64_attribute.go
index dc9fa4d4..ffceb7e8 100644
--- a/internal/resource/int64_attribute.go
+++ b/internal/resource/int64_attribute.go
@@ -159,7 +159,13 @@ func (g GeneratorInt64Attribute) ModelField(name generatorschema.FrameworkIdenti
 	return field, nil
 }
 
-func (g GeneratorInt64Attribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorInt64Attribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	if g.AssociatedExternalType == nil {
 		return nil, nil
 	}
diff --git a/internal/resource/list_attribute.go b/internal/resource/list_attribute.go
index 557e3432..f5fdbefa 100644
--- a/internal/resource/list_attribute.go
+++ b/internal/resource/list_attribute.go
@@ -187,7 +187,13 @@ func (g GeneratorListAttribute) ModelField(name generatorschema.FrameworkIdentif
 	return field, nil
 }
 
-func (g GeneratorListAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorListAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	if g.AssociatedExternalType == nil {
 		return nil, nil
 	}
diff --git a/internal/resource/list_nested_attribute.go b/internal/resource/list_nested_attribute.go
index baa3570b..f3caec8a 100644
--- a/internal/resource/list_nested_attribute.go
+++ b/internal/resource/list_nested_attribute.go
@@ -194,7 +194,13 @@ func (g GeneratorListNestedAttribute) GetAttributes() schema.GeneratorAttributes
 	return g.NestedObject.Attributes
 }
 
-func (g GeneratorListNestedAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorListNestedAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -247,7 +253,7 @@ func (g GeneratorListNestedAttribute) CustomTypeAndValue(name string) ([]byte, e
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/resource/list_nested_block.go b/internal/resource/list_nested_block.go
index 1ed6ceed..5e729a51 100644
--- a/internal/resource/list_nested_block.go
+++ b/internal/resource/list_nested_block.go
@@ -194,7 +194,13 @@ func (g GeneratorListNestedBlock) GetBlocks() schema.GeneratorBlocks {
 	return g.NestedObject.Blocks
 }
 
-func (g GeneratorListNestedBlock) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorListNestedBlock) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -298,7 +304,7 @@ func (g GeneratorListNestedBlock) CustomTypeAndValue(name string) ([]byte, error
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
@@ -310,7 +316,7 @@ func (g GeneratorListNestedBlock) CustomTypeAndValue(name string) ([]byte, error
 
 	for _, k := range blockKeys {
 		if c, ok := g.NestedObject.Blocks[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/resource/map_attribute.go b/internal/resource/map_attribute.go
index 297ef9bb..8601cf70 100644
--- a/internal/resource/map_attribute.go
+++ b/internal/resource/map_attribute.go
@@ -187,7 +187,13 @@ func (g GeneratorMapAttribute) ModelField(name generatorschema.FrameworkIdentifi
 	return field, nil
 }
 
-func (g GeneratorMapAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorMapAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	if g.AssociatedExternalType == nil {
 		return nil, nil
 	}
diff --git a/internal/resource/map_nested_attribute.go b/internal/resource/map_nested_attribute.go
index d4fa1fdc..3f9f3214 100644
--- a/internal/resource/map_nested_attribute.go
+++ b/internal/resource/map_nested_attribute.go
@@ -194,7 +194,13 @@ func (g GeneratorMapNestedAttribute) GetAttributes() schema.GeneratorAttributes
 	return g.NestedObject.Attributes
 }
 
-func (g GeneratorMapNestedAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorMapNestedAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -247,7 +253,7 @@ func (g GeneratorMapNestedAttribute) CustomTypeAndValue(name string) ([]byte, er
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/resource/number_attribute.go b/internal/resource/number_attribute.go
index 4982b961..77a1f2fe 100644
--- a/internal/resource/number_attribute.go
+++ b/internal/resource/number_attribute.go
@@ -159,7 +159,13 @@ func (g GeneratorNumberAttribute) ModelField(name generatorschema.FrameworkIdent
 	return field, nil
 }
 
-func (g GeneratorNumberAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorNumberAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	if g.AssociatedExternalType == nil {
 		return nil, nil
 	}
diff --git a/internal/resource/object_attribute.go b/internal/resource/object_attribute.go
index d7c8b0fd..1d2db097 100644
--- a/internal/resource/object_attribute.go
+++ b/internal/resource/object_attribute.go
@@ -194,7 +194,13 @@ func (g GeneratorObjectAttribute) ModelField(name generatorschema.FrameworkIdent
 	return field, nil
 }
 
-func (g GeneratorObjectAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorObjectAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	if g.AssociatedExternalType == nil {
 		return nil, nil
 	}
diff --git a/internal/resource/set_attribute.go b/internal/resource/set_attribute.go
index 0515d8bf..1cb60102 100644
--- a/internal/resource/set_attribute.go
+++ b/internal/resource/set_attribute.go
@@ -187,7 +187,13 @@ func (g GeneratorSetAttribute) ModelField(name generatorschema.FrameworkIdentifi
 	return field, nil
 }
 
-func (g GeneratorSetAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorSetAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	if g.AssociatedExternalType == nil {
 		return nil, nil
 	}
diff --git a/internal/resource/set_nested_attribute.go b/internal/resource/set_nested_attribute.go
index 4258003c..a7e9db06 100644
--- a/internal/resource/set_nested_attribute.go
+++ b/internal/resource/set_nested_attribute.go
@@ -194,7 +194,13 @@ func (g GeneratorSetNestedAttribute) GetAttributes() schema.GeneratorAttributes
 	return g.NestedObject.Attributes
 }
 
-func (g GeneratorSetNestedAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorSetNestedAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -247,7 +253,7 @@ func (g GeneratorSetNestedAttribute) CustomTypeAndValue(name string) ([]byte, er
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/resource/set_nested_block.go b/internal/resource/set_nested_block.go
index 64b4250d..0addb471 100644
--- a/internal/resource/set_nested_block.go
+++ b/internal/resource/set_nested_block.go
@@ -194,7 +194,13 @@ func (g GeneratorSetNestedBlock) GetBlocks() schema.GeneratorBlocks {
 	return g.NestedObject.Blocks
 }
 
-func (g GeneratorSetNestedBlock) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorSetNestedBlock) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.NestedObject.Attributes.AttrValues()
@@ -298,7 +304,7 @@ func (g GeneratorSetNestedBlock) CustomTypeAndValue(name string) ([]byte, error)
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.NestedObject.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
@@ -310,13 +316,15 @@ func (g GeneratorSetNestedBlock) CustomTypeAndValue(name string) ([]byte, error)
 
 	for _, k := range blockKeys {
 		if c, ok := g.NestedObject.Blocks[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
 			}
 
 			buf.Write(b)
+
+			continue
 		}
 	}
 
diff --git a/internal/resource/single_nested_attribute.go b/internal/resource/single_nested_attribute.go
index 60b3f6bd..e1419f9d 100644
--- a/internal/resource/single_nested_attribute.go
+++ b/internal/resource/single_nested_attribute.go
@@ -185,7 +185,13 @@ func (g GeneratorSingleNestedAttribute) GetAttributes() schema.GeneratorAttribut
 	return g.Attributes
 }
 
-func (g GeneratorSingleNestedAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorSingleNestedAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.Attributes.AttrValues()
@@ -238,7 +244,7 @@ func (g GeneratorSingleNestedAttribute) CustomTypeAndValue(name string) ([]byte,
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/resource/single_nested_block.go b/internal/resource/single_nested_block.go
index 972390e6..408f8a85 100644
--- a/internal/resource/single_nested_block.go
+++ b/internal/resource/single_nested_block.go
@@ -205,7 +205,13 @@ func (g GeneratorSingleNestedBlock) GetBlocks() schema.GeneratorBlocks {
 	return g.Blocks
 }
 
-func (g GeneratorSingleNestedBlock) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorSingleNestedBlock) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	var buf bytes.Buffer
 
 	attributeAttrValues, err := g.Attributes.AttrValues()
@@ -309,7 +315,7 @@ func (g GeneratorSingleNestedBlock) CustomTypeAndValue(name string) ([]byte, err
 	// CustomTypeAndValue interface (i.e, nested attributes).
 	for _, k := range attributeKeys {
 		if c, ok := g.Attributes[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
@@ -321,7 +327,7 @@ func (g GeneratorSingleNestedBlock) CustomTypeAndValue(name string) ([]byte, err
 
 	for _, k := range blockKeys {
 		if c, ok := g.Blocks[k].(schema.CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
diff --git a/internal/resource/string_attribute.go b/internal/resource/string_attribute.go
index 5bea3434..46ce4560 100644
--- a/internal/resource/string_attribute.go
+++ b/internal/resource/string_attribute.go
@@ -159,7 +159,13 @@ func (g GeneratorStringAttribute) ModelField(name generatorschema.FrameworkIdent
 	return field, nil
 }
 
-func (g GeneratorStringAttribute) CustomTypeAndValue(name string) ([]byte, error) {
+func (g GeneratorStringAttribute) CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error) {
+	if _, ok := generated[name]; ok {
+		return nil, nil
+	}
+
+	generated[name] = struct{}{}
+
 	if g.AssociatedExternalType == nil {
 		return nil, nil
 	}
diff --git a/internal/schema/attributes.go b/internal/schema/attributes.go
index 101d0ab5..1c3bcdc3 100644
--- a/internal/schema/attributes.go
+++ b/internal/schema/attributes.go
@@ -83,7 +83,7 @@ func (g GeneratorAttributes) AttrTypes() (map[string]string, error) {
 		case GeneratorSetNestedAttribute:
 			attrTypes[k] = fmt.Sprintf("basetypes.SetType{\nElemType: %sValue{}.Type(ctx),\n}", name.ToPascalCase())
 		case GeneratorSingleNestedAttribute:
-			attrTypes[k] = fmt.Sprintf("basetypes.ObjectType{\nAttrTypes: %sValue{}.AttributeTypes(ctx),\n}", name.ToPascalCase())
+			attrTypes[k] = fmt.Sprintf("%sType{\nbasetypes.ObjectType{\nAttrTypes: %sValue{}.AttributeTypes(ctx),\n},\n}", name.ToPascalCase(), name.ToPascalCase())
 		}
 	}
 
@@ -111,7 +111,7 @@ func (g GeneratorAttributes) AttrValues() (map[string]string, error) {
 		case GeneratorSetNestedAttribute:
 			attrValues[k] = "basetypes.SetValue"
 		case GeneratorSingleNestedAttribute:
-			attrValues[k] = "basetypes.ObjectValue"
+			attrValues[k] = fmt.Sprintf("%sValue", FrameworkIdentifier(k).ToPascalCase())
 		}
 	}
 
diff --git a/internal/schema/attrtypes.go b/internal/schema/attrtypes.go
index 178d1962..1c533e23 100644
--- a/internal/schema/attrtypes.go
+++ b/internal/schema/attrtypes.go
@@ -64,7 +64,8 @@ func GetAttrTypes(attrTypes specschema.ObjectAttributeTypes) string {
 			if v.Object.CustomType != nil {
 				aTypes.WriteString(fmt.Sprintf("%s{\nAttrTypes: map[string]attr.Type{\n%s\n},\n}", v.Object.CustomType.Type, GetAttrTypes(v.Object.AttributeTypes)))
 			} else {
-				aTypes.WriteString(fmt.Sprintf("types.ObjectType{\nAttrTypes: map[string]attr.Type{\n%s\n},\n}", GetAttrTypes(v.Object.AttributeTypes)))
+				typeName := FrameworkIdentifier(v.Name).ToPascalCase()
+				aTypes.WriteString(fmt.Sprintf("%sType{\nbasetypes.ObjectType{\nAttrTypes: %sValue{}.AttributeTypes(ctx),\n},\n}", typeName, typeName))
 			}
 		case v.Set != nil:
 			if v.Set.CustomType != nil {
diff --git a/internal/schema/custom_nested_object_test.go b/internal/schema/custom_nested_object_test.go
index ad4e77a4..d3906a79 100644
--- a/internal/schema/custom_nested_object_test.go
+++ b/internal/schema/custom_nested_object_test.go
@@ -1032,37 +1032,15 @@ return objVal, diags
 			attrTypes: map[string]string{
 				"list_nested_attribute": "basetypes.ListType{}",
 			},
+
 			expected: []byte(`
 func (v ExampleValue) ToObjectValue(ctx context.Context) (basetypes.ObjectValue, diag.Diagnostics) {
 var diags diag.Diagnostics
 
-listNestedAttribute := types.ListValueMust(
-ListNestedAttributeType{
-basetypes.ObjectType{
-AttrTypes: ListNestedAttributeValue{}.AttributeTypes(ctx),
-},
-},
-v.ListNestedAttribute.Elements(),
-)
+var listNestedAttribute attr.Value
 
-if v.ListNestedAttribute.IsNull() {
-listNestedAttribute = types.ListNull(
-ListNestedAttributeType{
-basetypes.ObjectType{
-AttrTypes: ListNestedAttributeValue{}.AttributeTypes(ctx),
-},
-},
-)
-}
-
-if v.ListNestedAttribute.IsUnknown() {
-listNestedAttribute = types.ListUnknown(
-ListNestedAttributeType{
-basetypes.ObjectType{
-AttrTypes: ListNestedAttributeValue{}.AttributeTypes(ctx),
-},
-},
-)
+{
+	listNestedAttribute = v.ListNestedAttribute
 }
 
 
@@ -1099,33 +1077,10 @@ return objVal, diags
 func (v ExampleValue) ToObjectValue(ctx context.Context) (basetypes.ObjectValue, diag.Diagnostics) {
 var diags diag.Diagnostics
 
-mapNestedAttribute := types.MapValueMust(
-MapNestedAttributeType{
-basetypes.ObjectType{
-AttrTypes: MapNestedAttributeValue{}.AttributeTypes(ctx),
-},
-},
-v.MapNestedAttribute.Elements(),
-)
-
-if v.MapNestedAttribute.IsNull() {
-mapNestedAttribute = types.MapNull(
-MapNestedAttributeType{
-basetypes.ObjectType{
-AttrTypes: MapNestedAttributeValue{}.AttributeTypes(ctx),
-},
-},
-)
-}
+var mapNestedAttribute attr.Value
 
-if v.MapNestedAttribute.IsUnknown() {
-mapNestedAttribute = types.MapUnknown(
-MapNestedAttributeType{
-basetypes.ObjectType{
-AttrTypes: MapNestedAttributeValue{}.AttributeTypes(ctx),
-},
-},
-)
+{
+	mapNestedAttribute = v.MapNestedAttribute
 }
 
 
@@ -1162,33 +1117,10 @@ return objVal, diags
 func (v ExampleValue) ToObjectValue(ctx context.Context) (basetypes.ObjectValue, diag.Diagnostics) {
 var diags diag.Diagnostics
 
-setNestedAttribute := types.SetValueMust(
-SetNestedAttributeType{
-basetypes.ObjectType{
-AttrTypes: SetNestedAttributeValue{}.AttributeTypes(ctx),
-},
-},
-v.SetNestedAttribute.Elements(),
-)
-
-if v.SetNestedAttribute.IsNull() {
-setNestedAttribute = types.SetNull(
-SetNestedAttributeType{
-basetypes.ObjectType{
-AttrTypes: SetNestedAttributeValue{}.AttributeTypes(ctx),
-},
-},
-)
-}
+var setNestedAttribute attr.Value
 
-if v.SetNestedAttribute.IsUnknown() {
-setNestedAttribute = types.SetUnknown(
-SetNestedAttributeType{
-basetypes.ObjectType{
-AttrTypes: SetNestedAttributeValue{}.AttributeTypes(ctx),
-},
-},
-)
+{
+	setNestedAttribute = v.SetNestedAttribute
 }
 
 
@@ -1258,33 +1190,10 @@ return objVal, diags
 func (v ExampleValue) ToObjectValue(ctx context.Context) (basetypes.ObjectValue, diag.Diagnostics) {
 var diags diag.Diagnostics
 
-exampleType := types.ListValueMust(
-TypeType{
-basetypes.ObjectType{
-AttrTypes: TypeValue{}.AttributeTypes(ctx),
-},
-},
-v.ExampleType.Elements(),
-)
-
-if v.ExampleType.IsNull() {
-exampleType = types.ListNull(
-TypeType{
-basetypes.ObjectType{
-AttrTypes: TypeValue{}.AttributeTypes(ctx),
-},
-},
-)
-}
+var exampleType attr.Value
 
-if v.ExampleType.IsUnknown() {
-exampleType = types.ListUnknown(
-TypeType{
-basetypes.ObjectType{
-AttrTypes: TypeValue{}.AttributeTypes(ctx),
-},
-},
-)
+{
+	exampleType = v.ExampleType
 }
 
 
diff --git a/internal/schema/schema.go b/internal/schema/schema.go
index f9b287da..a5d85faa 100644
--- a/internal/schema/schema.go
+++ b/internal/schema/schema.go
@@ -247,6 +247,8 @@ func (g GeneratorSchema) Models(name string) ([]model.Model, error) {
 func (g GeneratorSchema) CustomTypeValueBytes() ([]byte, error) {
 	var buf bytes.Buffer
 
+	generated := make(map[string]struct{})
+
 	attributeKeys := g.Attributes.SortedKeys()
 
 	for _, k := range attributeKeys {
@@ -255,7 +257,7 @@ func (g GeneratorSchema) CustomTypeValueBytes() ([]byte, error) {
 		}
 
 		if c, ok := g.Attributes[k].(CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
@@ -273,7 +275,7 @@ func (g GeneratorSchema) CustomTypeValueBytes() ([]byte, error) {
 		}
 
 		if c, ok := g.Blocks[k].(CustomTypeAndValue); ok {
-			b, err := c.CustomTypeAndValue(k)
+			b, err := c.CustomTypeAndValue(k, generated)
 
 			if err != nil {
 				return nil, err
@@ -282,7 +284,6 @@ func (g GeneratorSchema) CustomTypeValueBytes() ([]byte, error) {
 			buf.Write(b)
 		}
 	}
-
 	if buf.Len() > 0 {
 		buf.WriteString("\n")
 	}
@@ -443,11 +444,12 @@ func AttrTypesString(attrTypes specschema.ObjectAttributeTypes) (string, error)
 		case v.Number != nil:
 			attrTypesStr = append(attrTypesStr, fmt.Sprintf("%q: types.NumberType", v.Name))
 		case v.Object != nil:
-			objAttrTypesStr, err := AttrTypesString(v.Object.AttributeTypes)
-			if err != nil {
-				return "", err
+			if v.Object.CustomType != nil {
+				attrTypesStr = append(attrTypesStr, fmt.Sprintf("%q: %s", v.Name, v.Object.CustomType.Type))
+			} else {
+				typeName := FrameworkIdentifier(v.Name).ToPascalCase()
+				attrTypesStr = append(attrTypesStr, fmt.Sprintf("%q: %sType{\nbasetypes.ObjectType{\nAttrTypes: %sValue{}.AttributeTypes(ctx),\n},\n}", v.Name, typeName, typeName))
 			}
-			attrTypesStr = append(attrTypesStr, fmt.Sprintf("%q: types.ObjectType{\nAttrTypes: map[string]attr.Type{\n%s,\n}\n}", v.Name, objAttrTypesStr))
 		case v.Set != nil:
 			elemType, err := ElementTypeString(v.Set.ElementType)
 			if err != nil {
diff --git a/internal/schema/templates/nested_object_value_to_object_value.gotmpl b/internal/schema/templates/nested_object_value_to_object_value.gotmpl
index ddf98ccd..34116827 100644
--- a/internal/schema/templates/nested_object_value_to_object_value.gotmpl
+++ b/internal/schema/templates/nested_object_value_to_object_value.gotmpl
@@ -3,62 +3,18 @@ func (v {{.Name}}Value) ToObjectValue(ctx context.Context) (basetypes.ObjectValu
 var diags diag.Diagnostics
 {{- range $key, $value := .AttributeTypes }}
 {{- if eq $value "ListNested" "MapNested" "SetNested"}}
-{{- $typesType := "List"}}
-{{- if eq $value "MapNested"}}
-{{- $typesType = "Map"}}
-{{- else if eq $value "SetNested"}}
-{{- $typesType = "Set"}}
-{{- end}}
 
-{{$key.ToPrefixCamelCase $.Name}} := types.{{$typesType}}ValueMust(
-{{$key.ToPascalCase}}Type{
-basetypes.ObjectType{
-AttrTypes: {{$key.ToPascalCase}}Value{}.AttributeTypes(ctx),
-},
-},
-v.{{$key.ToPrefixPascalCase $.Name}}.Elements(),
-)
-
-if v.{{$key.ToPrefixPascalCase $.Name}}.IsNull() {
-{{$key.ToPrefixCamelCase $.Name}} = types.{{$typesType}}Null(
-{{$key.ToPascalCase}}Type{
-basetypes.ObjectType{
-AttrTypes: {{$key.ToPascalCase}}Value{}.AttributeTypes(ctx),
-},
-},
-)
-}
+var {{$key.ToPrefixCamelCase $.Name}} attr.Value
 
-if v.{{$key.ToPrefixPascalCase $.Name}}.IsUnknown() {
-{{$key.ToPrefixCamelCase $.Name}} = types.{{$typesType}}Unknown(
-{{$key.ToPascalCase}}Type{
-basetypes.ObjectType{
-AttrTypes: {{$key.ToPascalCase}}Value{}.AttributeTypes(ctx),
-},
-},
-)
+{
+	{{$key.ToPrefixCamelCase $.Name}} = v.{{$key.ToPrefixPascalCase $.Name}}
 }
 {{else if eq $value "SingleNested"}}
 
-var {{$key.ToCamelCase}} basetypes.ObjectValue
-
-if v.{{$key.ToPascalCase}}.IsNull() {
-{{$key.ToCamelCase}} = types.ObjectNull(
-{{$key.ToPascalCase}}Value{}.AttributeTypes(ctx),
-)
-}
-
-if v.{{$key.ToPascalCase}}.IsUnknown() {
-{{$key.ToCamelCase}} = types.ObjectUnknown(
-{{$key.ToPascalCase}}Value{}.AttributeTypes(ctx),
-)
-}
+var {{$key.ToCamelCase}} attr.Value
 
-if !v.{{$key.ToPascalCase}}.IsNull() && !v.{{$key.ToPascalCase}}.IsUnknown() {
-{{$key.ToCamelCase}} = types.ObjectValueMust(
-{{$key.ToPascalCase}}Value{}.AttributeTypes(ctx),
-v.{{$key.ToPascalCase}}.Attributes(),
-)
+{
+	{{$key.ToCamelCase}} = v.{{$key.ToPascalCase}}
 }
 {{end}}
 {{- end}}
diff --git a/internal/schema/types.go b/internal/schema/types.go
index 3521d347..2074119c 100644
--- a/internal/schema/types.go
+++ b/internal/schema/types.go
@@ -23,7 +23,7 @@ type Blocks interface {
 }
 
 type CustomTypeAndValue interface {
-	CustomTypeAndValue(name string) ([]byte, error)
+	CustomTypeAndValue(name string, generated map[string]struct{}) ([]byte, error)
 }
 
 type Elements interface {