Message type: E = Error
Message class: VW - Shipment Processing Output
Message number: 277
Message text: Unexpected error during creation of billing documents for shipment &.
When you tried to create billing documents, an error occured that has
not yet been documented.
The system issues an error message and terminates further processing.
Check whether you can bill the relevant deliveries by using transaction
Error message extract from SAP system. Copyright SAP SE.