SAP Function Module search on MRM_F
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MRM_FINAL_CHECK - Logistic invoice verification: Final check and posting preparation
MRM_FI_DOCUMENT_CHECK - Logistic invoice verification: Check if invoice is already entered
MRM_FI_NUMBER_ASSIGNMENT_CHECK - check number assignment in FI
MRM_FI_NUMBER_DISPLAY - Get FI Number to display
MRM_FRSEG_TO_DRSEG - FRSEG to DRSEG
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