Diagnosis
An IDoc of message type &v1& was passed to the ALE layer, but the threereceiver fields in the header record were not filled. In this case theALE layer tries to determine the receivers from the entries in thedistribution model. There are no entries available in the distributionmodel for the above message type.

Procedure
Define the receivers in your distribution model for this message typeor deactivate distribution for these message types.