Get Sales Quotation details at run time.

  I have object on Sales Quotation in ECC system. When end user enter details and press save button in Tcode VA21 then

  my BADI/User exit/customer exit has to catch those sales quotation details in runtime.

  (I have further object, by using this sales quotation details).

  For this I wrote code in program MV45AFZZ, in that USEREXIT_SAVE_DOCUMENT.

  In this user exit I am calling to BAPISDORDER_GETDETAILEDLIST by passing VBAK-VBELN.

  But BAPI not returning  any sales quotation details in user exit.

  ( Whereas BAPISDORDER_GETDETAILS returning sales quote details in report by hard code VBELN value ).

  Even I tried for BADIs which are triggered at sales quotation SAVE. Most of the BADIs are SAP internal use and BADIs which are for developers has no VBELN field in import tab.

Is any body have solution ?