diff --git a/docs/input_mapping/_general.md b/docs/input_mapping/_general.md
index 94bbfc4e..a34be753 100644
--- a/docs/input_mapping/_general.md
+++ b/docs/input_mapping/_general.md
@@ -57,3 +57,9 @@ As OCPI enforces a maximum of seven digits after the comma, the OCPDB caps all l
 and `EVSE` objects to seven digits after the comma. For further details about the OCPI regular expression for location
 data, please have a look at the
 [OCPI specification](https://github.com/ocpi/ocpi/blob/release-2.2.1-bugfixes/mod_locations.asciidoc#mod_locations_geolocation_class).
+
+
+## EVSE: last status update
+
+The extended OCPI output has a field `Evse.status_last_updated` which is used to update the status of an EVSE. It is
+updated as soon as a status change is detected.
diff --git a/webapp/services/import_services/base_import_service.py b/webapp/services/import_services/base_import_service.py
index 71d50d74..afe72ab9 100644
--- a/webapp/services/import_services/base_import_service.py
+++ b/webapp/services/import_services/base_import_service.py
@@ -118,9 +118,10 @@ def save_evse_updates(self, evse_updates: list[EvseUpdate | EvseRealtimeUpdate])
                 continue
 
             evse.last_updated = evse_update.last_updated or datetime.now(tz=timezone.utc)
-            evse.status_last_updated = (
-                evse_update.status_last_updated or evse_update.last_updated or datetime.now(tz=timezone.utc)
-            )
+            if evse.status_last_updated is None or evse.status != evse_update.status:
+                evse.status_last_updated = (
+                    evse_update.status_last_updated or evse_update.last_updated or datetime.now(tz=timezone.utc)
+                )
 
             for key, value in evse_update.to_dict().items():
                 if key in ['last_updated', 'status_last_updated']: