SAP Message B1128 - A message type could not be (uniquely) identified

Diagnosis
In order that IDOCs can be sent in this case with the help of the ALEcustomer distribution model, the partner profiles for the messagecontrol for the application &v1&, message type &v2&, change message'&v3&', partner type 'LS' and partner role ' ' must contain the samemessage type for all parameter numbers.
In this case, a total of &v4& different message types were detected.

Procedure
You need to maintain the partner profiles for the message control suchthat the same message type gets used for all partners with theselection criteria listed above.