SAP Message WM339 - Last processed on & at &, take note of changes after this date

Diagnosis
The last (successful) processing run was for a date different to theone that you requested.

System Response
In background processes:
The last (successful) deadline is used as a search criterion forthe change documents to be reedited.
In dialog processes:
The entered values are retained. There is therefore the risk ofmultiple processing of the same change documents (pure performanceproblem).