SAP Message RW025 - Component & is not defined

Diagnosis
The interface to Accounting was called with component "&v1&". Thiscomponent is not defined in the current client.

System Response
Processing not possible in the interface.

Procedure
This is a system error. You must check whether the calling applicationtransfers an invalid value for components to the interface, or whethervalid entries are missing in table TRWCA.