F110 Execute Payment Print

[Halladay, Liz (Calgary)]

I have created a custom workflow to execute the payment run and payment
print from F110.  The run executes correctly however the print does not.
I am getting the following error:

Function code cannot be selected

The ok_code = "=ZAEX"


My code is as follows:

REPORT zF110 NO STANDARD PAGE HEADING LINE-SIZE 255.

PARAMETERS: pa_laufd LIKE reguh-laufd OBLIGATORY,
            pa_laufi LIKE reguh-laufi OBLIGATORY.

INCLUDE bdcrecx1.

START-OF-SELECTION.

  PERFORM open_group.
    PERFORM bdc_dynpro USING 'SAPF110V' '0200'.
    PERFORM bdc_field USING 'BDC_CURSOR'
    'F110V-LAUFI'.
    PERFORM bdc_field USING 'BDC_OKCODE'
    '/00'.


    PERFORM bdc_field USING 'F110V-LAUFD'
    pa_laufd.
    PERFORM bdc_field USING 'F110V-LAUFI'
    pa_laufi.

    PERFORM bdc_dynpro USING 'SAPF110V' '0200'.
    PERFORM bdc_field USING 'BDC_CURSOR'
    'F110V-LAUFD'.
    PERFORM bdc_field USING 'BDC_OKCODE'
    '=ZAEX'.

    PERFORM bdc_dynpro USING 'SAPF110V' '1106'.
    PERFORM bdc_field USING 'BDC_CURSOR'
    'F110V-XSTRF'.
    PERFORM bdc_field USING 'BDC_OKCODE'
    '=EP'.
    PERFORM bdc_field USING 'F110V-STRDT'
    ''.
    PERFORM bdc_field USING 'F110V-XSTRF'
    'X'.
    PERFORM bdc_field USING 'F110V-STRZT'
    ''.

    PERFORM bdc_transaction USING 'F110'.       "PRINT PROGRAM

  PERFORM close_group.

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