AEM replication exception

Issue

When we see the below error in AEM replication queue while publishing content in AEM, that means the user doesn't have enough permission to replicate the content or the publishing user that is configured in the AEM replication queue is not the correct user for replication.

error: com.day.cq.replication.ReplicationException: Repository error during node import: OakConstraint0027: The admin user cannot be removed.

Resolution

Check the ACL for that user on the publisher instance and ensure that the user has the permission to create, delete, and modify nodes.