SAP ABAP Message Number AAPO - 189 (AAPO) is used by

• Class (1)
• Function Module (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Function Module	FIAA_CHECK_ACCOUNTING_OBJECT	Stellt Kontierungselemente in den Beleg ein	AA_POST	APPL	SAP_FIN
2	Function Module	FIAA_CHECK_BUSINESS_AREA	Geschäftsbereich prüfen	AA_POST	APPL	SAP_FIN