Important conversion exits in SAP ABAP

Important conversion exits:

Why conversion exits : Suppose we are loop a table to populate final internal table,

So inorder the read statement to be successful, we need to take the value with zeros (example : 000000000005000700) then only the read statement will be successful.

So , verify the condition and assign the value before using conversion routine.

Now we don’t want the output to be displayed with 000000 in ALV , so to suppress that we use ALV.

1.To convert matnr , input : 000000000005000700

                                Output : 5000700

      CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
        EXPORTING
          input  = gs_ekpo-matnr
        IMPORTING
          output = gs_ekpo-matnr.

2.To convert lifnr (vendor), input: 0000301593

                                          Output: 301593

      CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
        EXPORTING
          input  = gs_ekko-lifnr
        IMPORTING
          output = gs_ekko-lifnr.