Diagnosis
You want to make a change to one or more items of the document. Thechange that you want to make is subject to a check and approval.However, due to previous actions subject to approval (posting orchange), the document is currently being subjected to a check inaccordance with the multiple control principle in a workflow. Youcannot make any other changes to the document items until this checkand release has been completed.

System Response
The document change is rejected.

Procedure
Make the required document change at a later time.