Message Number list used by SAP ABAP Function Module FMPP_CHECK_INV_MOD_OUTOFFMPP (Check if the invoice is modified out of fmpp while posting PR)
SAP ABAP Function Module FMPP_CHECK_INV_MOD_OUTOFFMPP (Check if the invoice is modified out of fmpp while posting PR) is using
# Object Type Object Name Object Description Note
     
1 Message Number  FMPP1 - 102 Internal error. No field &1 exists in the structure.