SAP ABAP Message Number NN - 223 (NN) is used by

• Function Module (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Function Module	ISH_NL_MAX_NUMBER_SERVICE	IS-H NL: Check and apply service rule (M3 or M4)	NNL1	IS-H	IS-H
2	Function Module	ISH_NL_MOST_EXPENSIVE_SERVICE	IS-H NL: Determine which service rule (M1 or M2) will be applied	NNL1	IS-H	IS-H