Messages for material &: log number &

What causes this issue?

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

System Response

How to fix this error?

You can view the messages issued during processing of the IDoc data for
material &V1& in the application log under number &V2&.
<DS:TRAN.MM90>Proceed</>

Error message extract from SAP system. Copyright SAP SE.