SAP Message /SAPSLL/PLUGINR3832 - BAdI /SAPSLL/CUS_PRO_DET has not been implemented

Diagnosis
Stock separation by customs status is active for this transaction. BAdI/SAPSLL/CUS_PRO_DET provides thefollowing methods,
BND_WHSE
_STOCK_POST_REL_MM and
BND_WHSE
_STOCK_POST_REL_SD,
which the system uses to determine whether the transaction is relevantfor GTS inventory management. These methods have not been implemented.

System Response
The transaction cannot be processed further.

Procedure
Implement the above methods in BAdI/SAPSLL/CUS_PRO_DET.