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+# LDN Messages Endpoints
+[Back to the list of all defined endpoints](endpoints.md)
+
+## Main Endpoint
+**/api/ldn/ldnmessages**
+
+Provide access to the ldn messages. List all the LDN messages
+
+A sample can be found at https://api7.dspace.org/server/#/server/api/ldn/ldnmessages
+
+Return codes:
+* 200 OK - if the operation succeed
+* 401 Unauthorized - if you are not authenticated
+* 403 Forbidden - if you are not logged in with sufficient permissions. Only system administrators can access
+
+## Single LDN Message
+**/api/ldn/ldnmessages/<:id>**
+
+```json
+{
+  "id" : "urn:uuid:94ecae35-dcfd-4182-8550-22c7164fe23f",
+  "notificationId" : "urn:uuid:94ecae35-dcfd-4182-8550-22c7164fe23f",
+  "queueStatus" : 1,
+  "queueStatusLabel" : "QUEUE_STATUS_QUEUED",
+  "context" : "7d95587b-8e26-4302-9911-3e0f40fc6e4b",
+  "object" : "7d95587b-8e26-4302-9911-3e0f40fc6e4b",
+  "target" : null,
+  "origin" : 1,
+  "inReplyTo" : null,
+  "activityStreamType" : "Announce",
+  "coarNotifyType" : "coar-notify:EndorsementAction",
+  "queueAttempts" : 0,
+  "queueLastStartTime" : null,
+  "queueTimeout" : "2024-01-03T10:56:41.737+00:00",
+  "notificationType" : "Incoming",
+  "type" : "message",
+  "_links" : {
+    "self" : {
+      "href" : "http://localhost/api/ldn/messages/urn:uuid:94ecae35-dcfd-4182-8550-22c7164fe23f"
+    }
+  }
+}
+```
+
+Status codes:
+* 200 OK - if the operation succeed
+* 401 Unauthorized - if you are not authenticated
+* 403 Forbidden - if you are not logged in with sufficient permissions. Only system administrators can access
+* 404 Not found - if no LDN Message exists with such id
+
+## Creating a new LDN Message
+**POST /api/ldn/ldnmessages**
+
+Creation of LDN Message is not supported via Endpoint
+
+Status codes:
+* 405 Method Not Allowed
+
+## PATCH
+
+Patch of LDN Message is not supported via Endpoint
+
+Status codes:
+* 405 Method Not Allowed
+
+## DELETE
+
+Deletion of LDN Message is not supported via Endpoint
+
+Status codes:
+* 405 Method Not Allowed
+
+## enqueueRetry
+**POST /api/ldn/ldnmessages/<:id>/enqueueretry**
+
+this endpoint is responsible for requesting a reprocessing of LDN Message
+by changing `queueStatusLabel` to be "QUEUE_STATUS_QUEUED_FOR_RETRY"
+```json
+{
+  "id" : "urn:uuid:94ecae35-dcfd-4182-8550-22c7164fe23f",
+  "notificationId" : "urn:uuid:94ecae35-dcfd-4182-8550-22c7164fe23f",
+  "queueStatus" : 7,
+  "queueStatusLabel" : "QUEUE_STATUS_QUEUED_FOR_RETRY",
+  "context" : "c433ac1a-949a-4435-bf3d-181dcaac1c56",
+  "object" : "c433ac1a-949a-4435-bf3d-181dcaac1c56",
+  "target" : null,
+  "origin" : 1,
+  "inReplyTo" : null,
+  "activityStreamType" : "Announce",
+  "coarNotifyType" : "coar-notify:EndorsementAction",
+  "queueAttempts" : 0,
+  "queueLastStartTime" : null,
+  "queueTimeout" : 1704281265044,
+  "notificationType" : "Incoming",
+  "type" : "message"
+}
+```
+
+Status codes:
+* 200 OK - if the operation succeed
+* 401 Unauthorized - if you are not authenticated
+* 403 Forbidden - if you are not logged in with sufficient permissions. Only system administrators can access
+* 404 Not found - if no LDN Message exists with such id