Select data from sap tables REF_A
Display SAP table details
REF_AKTION_BTR - Read promotion / create alloc tbl for promotional PO
REF_AKTION_DET_QTY_EXIT - Transfer structure calling user exit EXIT_SAPLWRWB_003
REF_AKTION_POS - Read promotion / create alloc tbl for promotional PO
REF_AKTION_UPD - Change promotion / create alloc tbl for promotional PO
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