Diagnosis
The required processing is stopped, as the document &V1& is currentlybeing processed and is therefore blocked for this processing.

System Response
When creating billing documents, processing of the preceding documentV1 is stopped. there is no possibility of processing furtherpreceding documents.
When creating cancellation billing documents, processing of thepreceding document &V1& is also stopped. As this preceding document ispart of the billing document to be cancelled, cancellation of thecomplete billing document is stopped.
If several billing documents are cancelled during processing,processing of all billing documents is stopped.

Procedure
Check who is responsible for the document block and repeat thetransaction after clearing the matter.