SAP Message USMD2144 - Data not deleted; assign a change request first

Diagnosis
You want to delete master data that has not yet been assigned to achange request, but you did not select a change request in the dialogbox Select Change Request. You can only delete master data if youassign it to a change request.

System Response
The master data is not deleted.

Procedure
Choose the Delete pushbutton again and then select a changerequest that is assigned to you.