A message type could not be (uniquely) identified

What causes this issue?

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

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

You need to maintain the partner profiles for the message control such
that the same message type gets used for all partners with the
selection criteria listed above.

Error message extract from SAP system. Copyright SAP SE.