SAP Message VF529 - Cancellation billing document &1 posted. Unable to transfer to FI

Diagnosis
The cancellation billing document contains down payment clearing items,however, it has not been transferred to financial accounting. Incorrectclearing postings may occur as a result when new billing documents aretransferred.

System Response
The billing document will not be transferred.

Procedure
Only once the cancellation billing document has been transferred tofinancial accounting can new billing documents be posted.