SAP Message RW004 - Object type or reference number is initial

Diagnosis
Sender and receiver documents which were generated across theAccounting interface are linked with one another via reference fields.
The system is now to search for receiver documents without thenecessary reference fields (object type "&v1&" and reference documentnumber "&v2&") being transferred.

System Response
The system cannot find the receiver documents in Accounting withoutspecifying the reference fields.

Procedure
This is a system error of the application which was called up.

810616RW 004: Object type or reference number is initial