SAP Message 1P157 - Transacation type '&1': +/- sign does not concur with legacy system

Diagnosis
You can file for the transaction type whether an incoming or outgoingpayment is involved. The value filed here does not concur with thelegacy system data.

Procedure
Either change the +/- sign for the transaction type or change theassignment to the BCA transaction types in the legacy system.