SAP ABAP Program LKIPLF1N (Form Class Library) is using

• Table/Structure Field (51)
• Function Module (1)
• Message Class (2)
• Message Number (2)
• Table (2)

#	Object Type	Object Name	Object Description	Note
1	Message Number	KO - 502	No change to field value &1: Old value &2 = new value &3
2	Message Number	KV - 624	&: field overflow during summation