Diagnosis
IDoc field &V1& (transmission number, segment: &V2&) isinitial.

System Response
Inbound processing terminated in mode In the background. furtherprocessing is possible in mode In the foreground.

Procedure
Edit the IDoc in the workflow inbox. Enter a permitted transmissionnumber in the IDoc field &V1&, then start processing again.
Alternatively, you can process the IDoc unchanged in mode in theforeground (online).
If you do not want inbound processing to terminate as a result of theexternal transmission number consistency check, set automaticprocessing allowed in Customizing.