SAP Message VHURL409 - Account determination cannot be carried out

Diagnosis
Account determination cannot be carried out for the statement, as itcontains transactions that have already been matched.

System Response
Account determination terminated.

Procedure
Since the statement contains transactions that have already beenmatched, it must already have been assigned to an account. If you wanta different account to be relevant, you must first set the matchedtransactions back to 'unmatched'. A new account can then be determined.