Diagnosis
An inbound XML response document always has to be connected with avalid user/ password combination so that the SAP System accepts the XMLresponse document. You can define permitted users for the Web workitem. The logon to the SAP System has to be performed under theseusers so that the content of the XML response document is also editedfrom the Web work item.
However, the logon of the XML response document was performed under theuser &V1&, which is not one of the permitted users.

System Response
The XML response document is not edited and the Web work item is notchanged.

Procedure
Check whether the user under which the logon took place is one of thepermitted users. Check whether the determination of the permitted usersgave the desired result. Note that the user for the Web activity alsohas to be a possible user of the associated reference workflow.