SAP ABAP Message Number 8A - 556 (8A) is used by

• Function Module (3)
• Program (1)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Function Module	OFF_NUMBER_CHECK_ID	Check format of XBLNR for Peruvian official document number	ID-FI-ID	APPL	SAP_FIN
2	Function Module	OFF_NUMBER_CHECK_IN	Check of the entered document reference number	FIN1	APPL	SAP_FIN
3	Function Module	OFF_NUMBER_CHECK_TW	Check of the entered document reference number	FIN1	APPL	SAP_FIN