PRELIMINARY_POSTING_FB01 is a standard SAP function module available within R/3 SAP systems depending on your version and release level. Below are the pattern details for this FM showing its interface including any import, export parameters etc and for your convenience any standard documentation available. All this information and more can be viewed if you enter the function module name PRELIMINARY_POSTING_FB01 into the relevant SAP transaction such as SE37 or SE80.
CALL FUNCTION 'PRELIMINARY_POSTING_FB01' " * EXPORTING * text_item_update = SPACE " boole-boole Data Element for BOOLE Domain: TRUE (='X') and FALSE (=' ') * i_xcmpl = SPACE " xfeld Checkbox * i_tcode = 'FB01' " t020-tcode ABAP Program, Current Transaction Code * i_pargb = " rf05a-pargb Business Partner's Business Area * i_tcode_int = " tcode Transaction Code IMPORTING xepbbp = " xfeld Checkbox * TABLES * t_bkorm = " bkorm Accounting correspondence requests * t_thead = " thead SAPscript: Text Header * t_splttab = " acsplt Carrier for Split Information re: Current Account Line Items * t_spltwt = " with_itemx Auxiliary structure for table WITH_ITEM . " PRELIMINARY_POSTING_FB01