diff --git a/Gemfile b/Gemfile
index 6fdf8561..6852a4c3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -37,13 +37,13 @@ gem 'resource_api', git: 'https://github.com/performant-software/resource-api.gi
 gem 'jwt_auth', git: 'https://github.com/performant-software/jwt-auth.git', tag: 'v0.1.3'
 
 # Core data
-gem 'core_data_connector', git: 'https://github.com/performant-software/core-data-connector.git', tag: 'v0.1.109'
+gem 'core_data_connector', git: 'https://github.com/performant-software/core-data-connector.git', tag: 'v0.1.111'
 
 # IIIF
 gem 'triple_eye_effable', git: 'https://github.com/performant-software/triple-eye-effable.git', tag: 'v0.2.7'
 
 # User defined fields
-gem 'user_defined_fields', git: 'https://github.com/performant-software/user-defined-fields.git', tag: 'v0.1.14'
+gem 'user_defined_fields', git: 'https://github.com/performant-software/user-defined-fields.git', tag: 'v0.1.15'
 
 # Fuzzy dates
 gem 'fuzzy_dates', git: 'https://github.com/performant-software/fuzzy-dates.git', tag: 'v0.1.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index 2b01be60..8e0bc999 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 GIT
   remote: https://github.com/performant-software/core-data-connector.git
-  revision: 727ca617ce80b2d9dc29f2cb0f80f707df31335d
-  tag: v0.1.109
+  revision: b7786f958414034ed449c89350fff768ec4f94be
+  tag: v0.1.111
   specs:
     core_data_connector (0.1.0)
       activerecord-postgis-adapter (~> 11.0)
@@ -59,8 +59,8 @@ GIT
 
 GIT
   remote: https://github.com/performant-software/user-defined-fields.git
-  revision: 9799f151ab51506eef42177c756b762060a9838a
-  tag: v0.1.14
+  revision: 3fe09c999fa5193e8de9e1253e60d25c95a40af8
+  tag: v0.1.15
   specs:
     user_defined_fields (0.1.0)
       rails (>= 6.0.3.2, < 9)
@@ -245,7 +245,7 @@ GEM
       racc (~> 1.4)
     nokogiri (1.18.9-x86_64-linux-gnu)
       racc (~> 1.4)
-    oj (3.16.12)
+    oj (3.16.13)
       bigdecimal (>= 3.0)
       ostruct (>= 0.2)
     ostruct (0.6.3)
diff --git a/client/src/components/ItemPage.js b/client/src/components/ItemPage.js
index 7aae5634..1bbd619c 100644
--- a/client/src/components/ItemPage.js
+++ b/client/src/components/ItemPage.js
@@ -49,7 +49,14 @@ type ComponentProps = {
   saved?: boolean
 };
 
-const ItemPage = ({ form: Form, onInitialize, onSave }: Props) => {
+const ItemPage = (props: Props) => {
+  const {
+    form: Form,
+    onCreateManifests,
+    onInitialize,
+    onSave
+  } = props;
+
   const { t } = useTranslation();
 
   const Component = useCallback((props: ComponentProps) => {
@@ -152,7 +159,9 @@ const ItemPage = ({ form: Form, onInitialize, onSave }: Props) => {
                   saving={props.saving}
                 />
               </Section>
-              <Relationships />
+              <Relationships
+                onCreateManifests={onCreateManifests}
+              />
               { projectModel?.allow_identifiers && props.item.id && (
                 <Section
                   id='identifiers'
@@ -186,6 +195,7 @@ const ItemPage = ({ form: Form, onInitialize, onSave }: Props) => {
 
   const Page = withReactRouterEditPage(Component, {
     id: 'itemId',
+    onCreateManifests,
     onSave,
     onInitialize,
     resolveValidationError: Validation.resolveUpdateError.bind(this)
diff --git a/client/src/components/ProjectModelRelationshipFactory.js b/client/src/components/ProjectModelRelationshipFactory.js
index 622f5fbe..a5f379fd 100644
--- a/client/src/components/ProjectModelRelationshipFactory.js
+++ b/client/src/components/ProjectModelRelationshipFactory.js
@@ -1,4 +1,4 @@
-// flow
+// @flow
 
 import React, { useMemo } from 'react';
 import RelatedEvent from './RelatedEvent';
@@ -13,7 +13,12 @@ import RelatedWork from './RelatedWork';
 import { Types } from '../utils/ProjectModels';
 import useProjectModelRelationship from '../hooks/ProjectModelRelationship';
 
-const ProjectModelRelationshipFactory = (props) => {
+type Props = {
+  onCreateManifests: (id: number, params: { [key: string]: any }) => Promise<any>,
+  relationshipId: number
+};
+
+const ProjectModelRelationshipFactory = (props: Props) => {
   const { projectModelRelationship } = useProjectModelRelationship();
 
   /**
@@ -56,6 +61,7 @@ const ProjectModelRelationshipFactory = (props) => {
       case Types.MediaContent:
         component = (
           <RelatedMediaContent
+            onCreateManifests={props.onCreateManifests}
             relationshipId={props.relationshipId}
           />
         );
diff --git a/client/src/components/ProjectModelRelationshipsFactory.js b/client/src/components/ProjectModelRelationshipsFactory.js
index 164e6c10..9785caef 100644
--- a/client/src/components/ProjectModelRelationshipsFactory.js
+++ b/client/src/components/ProjectModelRelationshipsFactory.js
@@ -16,7 +16,11 @@ import RelationshipsService from '../services/Relationships';
 import { Types } from '../utils/ProjectModels';
 import useProjectModelRelationship from '../hooks/ProjectModelRelationship';
 
-const ProjectModelRelationshipsFactory = () => {
+type Props = {
+  onCreateManifests: (id: number, params: { [key: string] : any }) => Promise<any>
+};
+
+const ProjectModelRelationshipsFactory = (props: Props) => {
   const [loaded, setLoaded] = useState(false);
   const [relationships, setRelationships] = useState();
 
@@ -87,7 +91,9 @@ const ProjectModelRelationshipsFactory = () => {
 
     if (classView === Types.MediaContent) {
       return (
-        <RelatedMediaContents />
+        <RelatedMediaContents
+          onCreateManifests={props.onCreateManifests}
+        />
       );
     }
 
@@ -136,6 +142,7 @@ const ProjectModelRelationshipsFactory = () => {
 
   return (
     <ProjectModelRelationshipFactory
+      onCreateManifests={props.onCreateManifests}
       relationshipId={relationship?.id}
     />
   );
diff --git a/client/src/components/RelatedMediaContent.js b/client/src/components/RelatedMediaContent.js
index 93272deb..fc26f78c 100644
--- a/client/src/components/RelatedMediaContent.js
+++ b/client/src/components/RelatedMediaContent.js
@@ -1,30 +1,37 @@
 // @flow
 
 import { EditModal, FileInputButton, LazyIIIF } from '@performant-software/semantic-components';
-import { IIIF as IIIFUtils } from '@performant-software/shared-components';
 import type { EditContainerProps } from '@performant-software/shared-components/types';
 import React, { useCallback, useContext, useMemo, useState } from 'react';
 import { useTranslation } from 'react-i18next';
 import { Button, Form } from 'semantic-ui-react';
 import _ from 'underscore';
+import ItemContext from '../context/Item';
+import ManifestUrlButton from './ManifestUrlButton';
+import MediaContentUtils from '../utils/MediaContent';
 import MediaContentsService from '../services/MediaContents';
 import ProjectContext from '../context/Project';
 import RelatedMediaContentModal from './RelatedMediaContentModal';
 import type { Relationship as RelationshipType } from '../types/Relationship';
 import RelationshipsService from '../services/Relationships';
-import { useRelationship } from '../hooks/Relationship';
+import useParams from '../hooks/ParsedParams';
 import useProjectModelRelationship from '../hooks/ProjectModelRelationship';
+import { useRelationship } from '../hooks/Relationship';
 import withRelationshipEditForm from '../hooks/RelationshipEditForm';
 
 type Props = EditContainerProps & {
-  item: RelationshipType
+  item: RelationshipType,
+  onCreateManifests: (id: number, params: { [key: string] : any }) => Promise<any>
 };
 
 const RelatedMediaContentForm = (props: Props) => {
   const [editModal, setEditModal] = useState(false);
+  const [saving, setSaving] = useState(false);
 
-  const { project } = useContext(ProjectContext);
-  const { foreignProjectModelId } = useProjectModelRelationship();
+  const { project, projectModel } = useContext(ProjectContext);
+  const { uuid } = useContext(ItemContext);
+  const { itemId } = useParams();
+  const { foreignProjectModelId, projectModelRelationship } = useProjectModelRelationship();
   const { t } = useTranslation();
 
   const {
@@ -35,11 +42,27 @@ const RelatedMediaContentForm = (props: Props) => {
   } = useRelationship(props);
 
   /**
-   * Sets the manifest URL.
+   * Memo-izes the manifest URL.
+   */
+  const manifestUrl = useMemo(() => (
+    MediaContentUtils.getManifestURL(projectModel, uuid, projectModelRelationship.uuid)
+  ), [projectModel, projectModelRelationship, uuid])
+
+  /**
+   * Calls the onCreateManifests callback.
    *
-   * @type {string|string|*}
+   * @type {(function(): void)|*}
    */
-  const manifest = useMemo(() => (IIIFUtils.createManifestURL(foreignObject?.manifest)), [foreignObject?.manifest]);
+  const onCreateManifest = useCallback(() => {
+    setSaving(true);
+
+    const params = {
+      project_model_relationship_id: projectModelRelationship.id
+    };
+
+    props.onCreateManifests(itemId, params)
+      .then(() => setSaving(false));
+  }, [itemId, projectModelRelationship])
 
   /**
    * Deletes the current relationship.
@@ -93,7 +116,7 @@ const RelatedMediaContentForm = (props: Props) => {
           contentType={foreignObject?.content_type}
           downloadUrl={foreignObject?.content_download_url}
           key={foreignObject?.id}
-          manifest={manifest}
+          manifest={manifestUrl}
           preview={foreignObject?.content_preview_url}
           src={foreignObject?.content_url}
         >
@@ -116,11 +139,22 @@ const RelatedMediaContentForm = (props: Props) => {
           { props.item.id && (
             <>
               <Button
-                color='teal'
+                color='green'
                 content={t('Common.buttons.edit')}
                 icon='pencil'
                 onClick={onNavigate}
               />
+              <ManifestUrlButton
+                url={manifestUrl}
+              />
+              <Button
+                color='grey'
+                content={t('RelatedMediaContent.buttons.refreshManifest')}
+                disabled={saving}
+                icon='redo'
+                loading={saving}
+                onClick={onCreateManifest}
+              />
               <Button
                 color='red'
                 content={t('Common.buttons.delete')}
diff --git a/client/src/components/RelatedMediaContents.js b/client/src/components/RelatedMediaContents.js
index 107beffd..1fdbf41d 100644
--- a/client/src/components/RelatedMediaContents.js
+++ b/client/src/components/RelatedMediaContents.js
@@ -27,16 +27,22 @@ import useParams from '../hooks/ParsedParams';
 import useProjectModelRelationship from '../hooks/ProjectModelRelationship';
 import useRelationships from '../hooks/Relationships';
 
+type Props = {
+  onCreateManifests: (id: number, params: { [key: string] : any }) => Promise<any>
+};
+
 const Modal = {
   upload: 0,
   link: 1
 };
 
-const RelatedMediaContents = () => {
+const RelatedMediaContents = (props: Props) => {
   const [count, setCount] = useState(0);
   const [errors, setErrors] = useState(null);
   const [modal, setModal] = useState(null);
+  const [creatingManifests, setCreatingManifests] = useState(false);
   const [saved, setSaved] = useState(false);
+  const [showUploadMessage, setShowUploadMessage] = useState(false);
 
   const { uuid } = useContext(ItemContext);
   const { projectModel } = useContext(ProjectContext);
@@ -116,8 +122,26 @@ const RelatedMediaContents = () => {
   const afterSave = useCallback(() => {
     setModal(null);
     setSaved(true);
+    setShowUploadMessage(true);
   }, []);
 
+  /**
+   * Calls the onCreateManifests callback.
+   *
+   * @type {(function(): void)|*}
+   */
+  const onCreateManifest = useCallback(() => {
+    setCreatingManifests(true);
+
+    const params = {
+      project_model_relationship_id: projectModelRelationship.id
+    };
+
+    props.onCreateManifests(itemId, params)
+      .then(() => setCreatingManifests(false))
+      .then(() => setSaved(true));
+  }, [itemId, projectModelRelationship]);
+
   /**
    * Resolves any error messages for user-defined fields and sets them on the state.
    *
@@ -173,7 +197,7 @@ const RelatedMediaContents = () => {
 
   return (
     <>
-      { saved && (
+      { showUploadMessage && (
         <MediaUploadingMessage
           multiple
         />
@@ -214,6 +238,13 @@ const RelatedMediaContents = () => {
               url={MediaContentUtils.getManifestURL(projectModel, uuid, projectModelRelationship.uuid)}
             />
           )
+        }, {
+          color: 'grey',
+          disabled: creatingManifests,
+          icon: 'redo',
+          content: t('RelatedMediaContents.buttons.refreshManifest'),
+          loading: creatingManifests,
+          onClick: onCreateManifest
         }]}
         className={cx('compact', styles.relatedMediaContents)}
         collectionName='relationships'
diff --git a/client/src/components/Relationships.js b/client/src/components/Relationships.js
index 08db8a48..425f899e 100644
--- a/client/src/components/Relationships.js
+++ b/client/src/components/Relationships.js
@@ -33,13 +33,15 @@ const Relationship = (props: Props) => {
             ? projectModelRelationship.inverse_name
             : projectModelRelationship.name}
         />
-        <ProjectModelRelationshipsFactory />
+        <ProjectModelRelationshipsFactory
+          onCreateManifests={props.onCreateManifests}
+        />
       </Section>
     </ProjectModelRelationshipContext.Provider>
   );
 };
 
-const Relationships = () => {
+const Relationships = (props) => {
   const { projectModel } = useContext(ProjectContext);
   const { itemId } = useParams();
 
@@ -53,6 +55,7 @@ const Relationships = () => {
   return _.map(projectModel.all_project_model_relationships, (projectModelRelationship) => (
     <Relationship
       key={projectModelRelationship.id}
+      onCreateManifests={props.onCreateManifests}
       projectModelRelationship={projectModelRelationship}
     />
   ));
diff --git a/client/src/hooks/RelationshipEditForm.js b/client/src/hooks/RelationshipEditForm.js
index 59b8c072..c6ac513b 100644
--- a/client/src/hooks/RelationshipEditForm.js
+++ b/client/src/hooks/RelationshipEditForm.js
@@ -67,7 +67,7 @@ const withRelationshipEditForm = (WrappedComponent) => (props: Props) => {
    *
    * @type {unknown}
    */
-  const Component = useMemo(() => <EditPage {...props} />, [props]);
+  const Component = useMemo(() => <EditPage {...props} />, [id, props]);
 
   return Component;
 };
diff --git a/client/src/i18n/en.json b/client/src/i18n/en.json
index 636b6795..f10fcc87 100644
--- a/client/src/i18n/en.json
+++ b/client/src/i18n/en.json
@@ -842,7 +842,15 @@
       "name": "Name"
     }
   },
+  "RelatedMediaContent": {
+    "buttons": {
+      "refreshManifest": "Refresh Manifest"
+    }
+  },
   "RelatedMediaContents": {
+    "buttons": {
+      "refreshManifest": "Refresh Manifest"
+    },
     "options": {
       "link": "Link existing record",
       "upload": "Upload from your computer"
diff --git a/client/src/pages/Event.js b/client/src/pages/Event.js
index c6b2b85e..f19f89fc 100644
--- a/client/src/pages/Event.js
+++ b/client/src/pages/Event.js
@@ -8,6 +8,10 @@ import EventsService from '../services/Events';
 const Person = () => (
   <ItemPage
     form={EventForm}
+    onCreateManifests={(id, params) => (
+      EventsService
+        .createManifests(id, params)
+    )}
     onInitialize={(id) => (
       EventsService
         .fetchOne(id)
diff --git a/client/src/pages/Instance.js b/client/src/pages/Instance.js
index ac54ab4f..93f26605 100644
--- a/client/src/pages/Instance.js
+++ b/client/src/pages/Instance.js
@@ -8,6 +8,10 @@ import ItemPage from '../components/ItemPage';
 const Instance = () => (
   <ItemPage
     form={InstanceForm}
+    onCreateManifests={(id, params) => (
+      InstancesService
+        .createManifests(id, params)
+    )}
     onInitialize={(id) => (
       InstancesService
         .fetchOne(id)
diff --git a/client/src/pages/Item.js b/client/src/pages/Item.js
index bc6d34c9..010bef4f 100644
--- a/client/src/pages/Item.js
+++ b/client/src/pages/Item.js
@@ -8,6 +8,10 @@ import ItemsService from '../services/Items';
 const Item = () => (
   <ItemPage
     form={ItemForm}
+    onCreateManifests={(id, params) => (
+      ItemsService
+        .createManifests(id, params)
+    )}
     onInitialize={(id) => (
       ItemsService
         .fetchOne(id)
diff --git a/client/src/pages/MediaContent.js b/client/src/pages/MediaContent.js
index ae6dbd41..fd34056d 100644
--- a/client/src/pages/MediaContent.js
+++ b/client/src/pages/MediaContent.js
@@ -12,6 +12,10 @@ const MediaContent = () => {
   return (
     <ItemPage
       form={MediaContentForm}
+      onCreateManifests={(id, params) => (
+        MediaContentsService
+          .createManifests(id, params)
+      )}
       onInitialize={(id) => (
         MediaContentsService
           .fetchOne(id)
diff --git a/client/src/pages/Organization.js b/client/src/pages/Organization.js
index 1b34d4f5..7ed2922a 100644
--- a/client/src/pages/Organization.js
+++ b/client/src/pages/Organization.js
@@ -8,6 +8,10 @@ import OrganizationService from '../services/Organizations';
 const Organization = () => (
   <ItemPage
     form={OrganizationForm}
+    onCreateManifests={(id, params) => (
+      OrganizationService
+        .createManifests(id, params)
+    )}
     onInitialize={(id) => (
       OrganizationService
         .fetchOne(id)
diff --git a/client/src/pages/Person.js b/client/src/pages/Person.js
index 5be28a74..24e05da5 100644
--- a/client/src/pages/Person.js
+++ b/client/src/pages/Person.js
@@ -8,6 +8,10 @@ import PersonForm from '../components/PersonForm';
 const Person = () => (
   <ItemPage
     form={PersonForm}
+    onCreateManifests={(id, params) => (
+      PeopleService
+        .createManifests(id, params)
+    )}
     onInitialize={(id) => (
       PeopleService
         .fetchOne(id)
diff --git a/client/src/pages/Place.js b/client/src/pages/Place.js
index f8871f22..3057ff6c 100644
--- a/client/src/pages/Place.js
+++ b/client/src/pages/Place.js
@@ -8,6 +8,10 @@ import PlacesService from '../services/Places';
 const Place = () => (
   <ItemPage
     form={PlaceForm}
+    onCreateManifests={(id, params) => (
+      PlacesService
+        .createManifests(id, params)
+    )}
     onInitialize={(id) => (
       PlacesService
         .fetchOne(id)
diff --git a/client/src/pages/TaxonomyItem.js b/client/src/pages/TaxonomyItem.js
index 16eada71..4b755ed9 100644
--- a/client/src/pages/TaxonomyItem.js
+++ b/client/src/pages/TaxonomyItem.js
@@ -8,6 +8,10 @@ import TaxonomyItemForm from '../components/TaxonomyItemForm';
 const TaxonomyItem = () => (
   <ItemPage
     form={TaxonomyItemForm}
+    onCreateManifests={(id, params) => (
+      TaxonomiesService
+        .createManifests(id, params)
+    )}
     onInitialize={(id) => (
       TaxonomiesService
         .fetchOne(id)
diff --git a/client/src/pages/Work.js b/client/src/pages/Work.js
index efa9ffab..b36654e5 100644
--- a/client/src/pages/Work.js
+++ b/client/src/pages/Work.js
@@ -8,6 +8,10 @@ import WorksService from '../services/Works';
 const Work = () => (
   <ItemPage
     form={WorkForm}
+    onCreateManifests={(id, params) => (
+      WorksService
+        .createManifests(id, params)
+    )}
     onInitialize={(id) => (
       WorksService
         .fetchOne(id)
diff --git a/client/src/services/Base.js b/client/src/services/Base.js
new file mode 100644
index 00000000..ebdb778f
--- /dev/null
+++ b/client/src/services/Base.js
@@ -0,0 +1,51 @@
+// @flow
+
+import { BaseService as APIBase } from '@performant-software/shared-components';
+
+/**
+ * Class responsible for handling all merge and manifests API requests.
+ */
+class BaseService extends APIBase {
+  /**
+   * Constructs a new BaseService object. This constructor should never be used directly.
+   */
+  constructor() {
+    super();
+
+    if (this.constructor === BaseService) {
+      throw new TypeError('Abstract class "BaseService" cannot be instantiated directly.');
+    }
+  }
+
+  /**
+   * Calls the /core_data/<model>/<id>/create_manifests API endpoint.
+   *
+   * @param id
+   * @param params
+   *
+   * @returns {*}
+   */
+  createManifests(id, params = {}) {
+    const transform = this.getTransform();
+    const payload = transform.toManifestable(params);
+
+    return this.getAxios().post(`${this.getBaseUrl()}/${id}/create_manifests`, payload, this.getConfig());
+  }
+
+  /**
+   * Calls the /core_data/<model>/merge API endpoint.
+   *
+   * @param item
+   * @param ids
+   *
+   * @returns {*}
+   */
+  mergeRecords(item, ids) {
+    const transform = this.getTransform();
+    const payload = transform.toMergeable(item, ids);
+
+    return this.getAxios().post(`${this.getBaseUrl()}/merge`, payload, this.getConfig());
+  }
+}
+
+export default BaseService;
diff --git a/client/src/services/Events.js b/client/src/services/Events.js
index dac4384f..b5cb2de0 100644
--- a/client/src/services/Events.js
+++ b/client/src/services/Events.js
@@ -1,12 +1,12 @@
 // @flow
 
+import BaseService from './Base';
 import EventTransform from '../transforms/Event';
-import MergeableService from './Mergeable';
 
 /**
  * Class responsible for handling all event API requests.
  */
-class Events extends MergeableService {
+class Events extends BaseService {
   /**
    * Returns the event base URL.
    *
diff --git a/client/src/services/Instances.js b/client/src/services/Instances.js
index ecceb699..54432215 100644
--- a/client/src/services/Instances.js
+++ b/client/src/services/Instances.js
@@ -1,12 +1,12 @@
 // @flow
 
+import BaseService from './Base';
 import InstanceTransform from '../transforms/Instance';
-import MergeableService from './Mergeable';
 
 /**
  * Class responsible for handling all Instance API requests.
  */
-class Instances extends MergeableService {
+class Instances extends BaseService {
   /**
    * Returns the Instance base URL.
    *
diff --git a/client/src/services/Items.js b/client/src/services/Items.js
index 478dc5b9..ba41422e 100644
--- a/client/src/services/Items.js
+++ b/client/src/services/Items.js
@@ -1,13 +1,13 @@
 // @flow
 
+import BaseService from './Base';
 import Importable from '../transforms/Importable';
 import ItemTransform from '../transforms/Item';
-import MergeableService from './Mergeable';
 
 /**
  * Class responsible for handling all item API requests.
  */
-class Items extends MergeableService {
+class Items extends BaseService {
   /**
    * Calls the `/items/:id/analyze_import` API endpoint.
    *
diff --git a/client/src/services/MediaContents.js b/client/src/services/MediaContents.js
index ab0d4b71..70a36f81 100644
--- a/client/src/services/MediaContents.js
+++ b/client/src/services/MediaContents.js
@@ -1,8 +1,8 @@
 // @flow
 
 import { TripleEyeEffable } from '@performant-software/shared-components';
+import BaseService from './Base';
 import MediaContentTransform from '../transforms/MediaContent';
-import MergeableService from './Mergeable';
 import type { MediaContent as MediaContentType } from '../types/MediaContent';
 import type { Project as ProjectType } from '../types/Project';
 import SessionService from './Session';
@@ -10,7 +10,7 @@ import SessionService from './Session';
 /**
  * Class responsible for handling all media contents API requests.
  */
-class MediaContents extends MergeableService {
+class MediaContents extends BaseService {
   /**
    * Returns the media contents base URL.
    *
diff --git a/client/src/services/Mergeable.js b/client/src/services/Mergeable.js
deleted file mode 100644
index 6eb996d6..00000000
--- a/client/src/services/Mergeable.js
+++ /dev/null
@@ -1,34 +0,0 @@
-// @flow
-
-import { BaseService } from '@performant-software/shared-components';
-
-/**
- * Class responsible for handling all merge API requests.
- */
-class MergeableService extends BaseService {
-  /**
-   * Constructs a new MergeableService object. This constructor should never be used directly.
-   */
-  constructor() {
-    super();
-
-    if (this.constructor === MergeableService) {
-      throw new TypeError('Abstract class "MergeableService" cannot be instantiated directly.');
-    }
-  }
-
-  /**
-   * Calls the /core_data/<model>/merge API endpoint.
-   *
-   * @param item
-   * @param ids
-   *
-   * @returns {*}
-   */
-  mergeRecords(item, ids) {
-    const transform = this.getTransform();
-    return this.getAxios().post(`${this.getBaseUrl()}/merge`, transform.toMergeable(item, ids), this.getConfig());
-  }
-}
-
-export default MergeableService;
diff --git a/client/src/services/Organizations.js b/client/src/services/Organizations.js
index 28349903..783ef489 100644
--- a/client/src/services/Organizations.js
+++ b/client/src/services/Organizations.js
@@ -1,12 +1,12 @@
 // @flow
 
-import MergeableService from './Mergeable';
+import BaseService from './Base';
 import OrganizationTransform from '../transforms/Organization';
 
 /**
  * Class responsible for handling all organization API requests.
  */
-class Organization extends MergeableService {
+class Organization extends BaseService {
   /**
    * Returns the organization base URL.
    *
diff --git a/client/src/services/People.js b/client/src/services/People.js
index 4272bfc8..4654c5a4 100644
--- a/client/src/services/People.js
+++ b/client/src/services/People.js
@@ -1,12 +1,12 @@
 // @flow
 
-import MergeableService from './Mergeable';
+import BaseService from './Base';
 import PersonTransform from '../transforms/Person';
 
 /**
  * Class responsible for handling all person API requests.
  */
-class People extends MergeableService {
+class People extends BaseService {
   /**
    * Returns the person base URL.
    *
diff --git a/client/src/services/Places.js b/client/src/services/Places.js
index 7eae7f43..845b8a34 100644
--- a/client/src/services/Places.js
+++ b/client/src/services/Places.js
@@ -1,12 +1,12 @@
 // @flow
 
-import MergeableService from './Mergeable';
+import BaseService from './Base';
 import PlaceTransform from '../transforms/Place';
 
 /**
  * Class responsible for handling all place API requests.
  */
-class Places extends MergeableService {
+class Places extends BaseService {
   /**
    * Returns the places base URL.
    *
diff --git a/client/src/services/Taxonomies.js b/client/src/services/Taxonomies.js
index 3acccbd9..5287d03d 100644
--- a/client/src/services/Taxonomies.js
+++ b/client/src/services/Taxonomies.js
@@ -1,12 +1,12 @@
 // @flow
 
-import MergeableService from './Mergeable';
+import BaseService from './Base';
 import TaxonomyTransform from '../transforms/Taxonomy';
 
 /**
  * Class responsible for handling all taxonomy API requests.
  */
-class Taxonomies extends MergeableService {
+class Taxonomies extends BaseService {
   /**
    * Returns the taxonomy base URL.
    *
diff --git a/client/src/services/Works.js b/client/src/services/Works.js
index 8380de9f..1500aa73 100644
--- a/client/src/services/Works.js
+++ b/client/src/services/Works.js
@@ -1,12 +1,12 @@
 // @flow
 
-import MergeableService from './Mergeable';
+import BaseService from './Base';
 import WorkTransform from '../transforms/Work';
 
 /**
  * Class responsible for handling all work API requests.
  */
-class Works extends MergeableService {
+class Works extends BaseService {
   /**
    * Returns the work base URL.
    *
diff --git a/client/src/transforms/Mergeable.js b/client/src/transforms/Base.js
similarity index 50%
rename from client/src/transforms/Mergeable.js
rename to client/src/transforms/Base.js
index 66626c54..13fe20cd 100644
--- a/client/src/transforms/Mergeable.js
+++ b/client/src/transforms/Base.js
@@ -1,11 +1,23 @@
 // @flow
 
-import { BaseTransform, ObjectJs as ObjectUtils } from '@performant-software/shared-components';
+import { BaseTransform as APIBase, ObjectJs as ObjectUtils } from '@performant-software/shared-components';
+import _ from 'underscore';
 
 /**
  * Class responsible for transforming records for merge requests.
  */
-class MergeableTransform extends BaseTransform {
+class BaseTransform extends APIBase {
+  /**
+   * Returns a hash of the valid parameters for the manifests endpoint.
+   *
+   * @param params
+   *
+   * @returns {*}
+   */
+  toManifestable(params) {
+    return _.pick(params, 'project_model_relationship_id');
+  }
+
   /**
    * Converts the passed item to a mergeable payload by removing any "id" attributes.
    *
@@ -22,4 +34,4 @@ class MergeableTransform extends BaseTransform {
   }
 }
 
-export default MergeableTransform;
+export default BaseTransform;
diff --git a/client/src/transforms/Event.js b/client/src/transforms/Event.js
index 958364e0..13e0df3a 100644
--- a/client/src/transforms/Event.js
+++ b/client/src/transforms/Event.js
@@ -1,13 +1,12 @@
 // @flow
 
-import { FuzzyDateTransform } from '@performant-software/shared-components';
+import BaseTransform from './Base';
 import type { Event as EventType } from '../types/Event';
-import MergeableTransform from './Mergeable';
 
 /**
  * Class responsible for transforming event records for POST/PUT requests.
  */
-class Event extends MergeableTransform {
+class Event extends BaseTransform {
   /**
    * Returns the event parameter name.
    *
diff --git a/client/src/transforms/Instance.js b/client/src/transforms/Instance.js
index f1c4d8df..4612113e 100644
--- a/client/src/transforms/Instance.js
+++ b/client/src/transforms/Instance.js
@@ -1,13 +1,13 @@
 // @flow
 
+import BaseTransform from './Base';
 import type { Instance as InstanceType } from '../types/Instance';
-import MergeableTransform from './Mergeable';
 import SourceNames from './SourceNames';
 
 /**
  * Class responsible for transforming instance records for POST/PUT requests.
  */
-class Instance extends MergeableTransform {
+class Instance extends BaseTransform {
   /**
    * Returns the instance parameter name.
    *
diff --git a/client/src/transforms/Item.js b/client/src/transforms/Item.js
index bdffcaf7..1c4d6921 100644
--- a/client/src/transforms/Item.js
+++ b/client/src/transforms/Item.js
@@ -2,14 +2,14 @@
 
 import { DataTypes } from '@performant-software/user-defined-fields';
 import _ from 'underscore';
+import BaseTransform from './Base';
 import type { Item as ItemType } from '../types/Item';
-import MergeableTransform from './Mergeable';
 import SourceNames from './SourceNames';
 
 /**
  * Class responsible for transforming item records for POST/PUT requests.
  */
-class Item extends MergeableTransform {
+class Item extends BaseTransform {
   /**
    * Returns the item parameter name.
    *
diff --git a/client/src/transforms/MediaContent.js b/client/src/transforms/MediaContent.js
index 0f798e60..42a67644 100644
--- a/client/src/transforms/MediaContent.js
+++ b/client/src/transforms/MediaContent.js
@@ -36,6 +36,17 @@ class MediaContent extends FormDataTransform {
     ];
   }
 
+  /**
+   * Returns the valid parameters for the create_manifests endpoint.
+   *
+   * @param params
+   *
+   * @returns {*}
+   */
+  toManifestable(params: { [key: string]: any }) {
+    return _.pick(params, 'project_model_relationship_id');
+  }
+
   /**
    * Converts the passed media contents to a mergeable payload by removing any "id" attributes.
    *
diff --git a/client/src/transforms/Organization.js b/client/src/transforms/Organization.js
index 0e2968a1..26048d45 100644
--- a/client/src/transforms/Organization.js
+++ b/client/src/transforms/Organization.js
@@ -1,13 +1,13 @@
 // @flow
 
-import MergeableTransform from './Mergeable';
+import BaseTransform from './Base';
 import type { Organization as OrganizationType } from '../types/Organization';
 import OrganizationNames from './OrganizationNames';
 
 /**
  * Class responsible for transforming organization records for POST/PUT requests.
  */
-class Organization extends MergeableTransform {
+class Organization extends BaseTransform {
   /**
    * Returns the person parameter name.
    *
diff --git a/client/src/transforms/Person.js b/client/src/transforms/Person.js
index 0ca61727..3ca07114 100644
--- a/client/src/transforms/Person.js
+++ b/client/src/transforms/Person.js
@@ -1,14 +1,14 @@
 // @flow
 
 import _ from 'underscore';
-import MergeableTransform from './Mergeable';
+import BaseTransform from './Base';
 import type { Person as PersonType } from '../types/Person';
 import PersonNames from './PersonNames';
 
 /**
  * Class responsible for transforming person records for POST/PUT requests.
  */
-class Person extends MergeableTransform {
+class Person extends BaseTransform {
   /**
    * Returns the person parameter name.
    *
diff --git a/client/src/transforms/Place.js b/client/src/transforms/Place.js
index 75e2b343..29aca8ec 100644
--- a/client/src/transforms/Place.js
+++ b/client/src/transforms/Place.js
@@ -1,7 +1,7 @@
 // @flow
 
 import _ from 'underscore';
-import MergeableTransform from './Mergeable';
+import BaseTransform from './Base';
 import type { Place as PlaceType } from '../types/Place';
 import PlaceGeometry from './PlaceGeometry';
 import PlaceLayers from './PlaceLayers';
@@ -10,7 +10,7 @@ import PlaceNames from './PlaceNames';
 /**
  * Class responsible for transforming place records for POST/PUT requests.
  */
-class Place extends MergeableTransform {
+class Place extends BaseTransform {
   /**
    * Returns the place parameter name.
    *
diff --git a/client/src/transforms/Taxonomy.js b/client/src/transforms/Taxonomy.js
index 51dac7a0..6c67165e 100644
--- a/client/src/transforms/Taxonomy.js
+++ b/client/src/transforms/Taxonomy.js
@@ -1,12 +1,12 @@
 // @flow
 
-import MergeableTransform from './Mergeable';
+import BaseTransform from './Base';
 import type { Taxonomy as TaxonomyType } from '../types/Taxonomy';
 
 /**
  * Class responsible for transforming taxonomy records for POST/PUT requests.
  */
-class Taxonomy extends MergeableTransform {
+class Taxonomy extends BaseTransform {
   /**
    * Returns the taxonomy parameter name.
    *
diff --git a/client/src/transforms/Work.js b/client/src/transforms/Work.js
index 3548ab7f..6ba91781 100644
--- a/client/src/transforms/Work.js
+++ b/client/src/transforms/Work.js
@@ -1,10 +1,10 @@
 // @flow
 
-import MergeableTransform from './Mergeable';
+import BaseTransform from './Base';
 import SourceNames from './SourceNames';
 import type { Work as WorkType } from '../types/Work';
 
-class Work extends MergeableTransform {
+class Work extends BaseTransform {
   /**
    * Returns the work parameter name.
    *