Delete the custom agreement in IEC. Unpublish and remove all mapping versions of the custom BOD.
Deleting custom agreements is not yet supported. You can unpublish, remove mappings, and deactivate the custom agreements as needed.
Verify that the custom session is deleted in EAR, that the custom BOD is deleted in BP for outbound BODs, and that the custom agreement and all mapping versions for the custom BOD are deleted in the IEC server.
Completing these steps results in the deletion of all versions of the custom BOD.