Message SAP WTY_AC022 - Please install plug-in BAPI for the acounting interface (ACID_PI)

Diagnosis You want to call functions in function group ACC9 (for example,BAPI_ACC_DOCUMENT_CHECK). System Response The system displays a message that requires you to install a plug-infor the AC (accounting) interface. Procedure Install the plug-in BAPI for the AC interface (componentPI), so that the functions BAPI_ACC_DOCUMENT_CHECK,BAPI_ACC_DOCUMENT_POST, BAPI_ACC_DOCUMENT_REV_CHECK andBAPI_ACC_DOCUMENT_REV_POST are available.