Dynamically calling a function module..

[Former Member]

Hi Friends,

I have to call different function modules dynamically depending on the field name.

Suppose..if field name is MASSN i have to call "HRWPC_RFC_MASSN_TEXT_GET" or if it is MASSG , then I have to call "HRWPC_RFC_MASSG_TEXT_GET". Its just for an example.Like this, I may get number of fields I have to call them dynamically.

For this.. I am retreiving the import and export parameters..from FUPARAREF table. And i am passing the values to PARA_TAB as follows.

LOOP AT it_import_fields INTO wa_import_fields.

READ TABLE lt_fields WITH KEY fname = wa_import_fields-fname.

IF sy-subrc EQ 0.

IF lt_fields-newdt IS NOT INITIAL.

wa_import_fields-value = lt_fields-newdt.

ELSE.

wa_import_fields-value = lt_fields-olddt.

ENDIF.

ENDIF.

MODIFY it_import_fields FROM wa_import_fields.

CLEAR wa_import_fields.

ENDLOOP.

LOOP AT it_export_fields INTO wa_export_fields.

READ TABLE lt_fields WITH KEY fname = wa_export_fields-fname.

IF sy-subrc EQ 0.

IF lt_fields-newdt IS NOT INITIAL.

wa_export_fields-value = lt_fields-newdt.

ELSE.

wa_export_fields-value = lt_fields-olddt.

ENDIF.

ENDIF.

MODIFY it_export_fields FROM wa_export_fields.

CLEAR wa_export_fields.

ENDLOOP.

LOOP AT it_import_fields INTO wa_import_fields.

wa_para_line-name = wa_import_fields-fname.

wa_para_line-kind = abap_func_exporting.

GET REFERENCE OF wa_import_fields-value INTO wa_para_line-value.

APPEND wa_para_line TO lt_para_tab.

ENDLOOP.

LOOP AT it_export_fields INTO wa_export_fields.

wa_para_line-name = wa_export_fields-fname.

wa_para_line-kind = abap_func_importing.

GET REFERENCE OF wa_export_fields-value INTO wa_para_line-value.

APPEND wa_para_line TO lt_para_tab.

ENDLOOP.

CALL FUNCTION lv_func_name

PARAMETER-TABLE

lt_para_tab.

ENDIF.

I am getting Dump at call function line saying.. Type declaration mis matched..

Please help me..

Thanks in advance.

Cheers.

Phani.

[Jelena_Perfiljeva]

Check the content and definitions in lt_para_tab.

From my personal experience CALL FUNCTION seems to be very finicky about the field type. Even the types that one would think should be compatible might cause a short dump. I always try to define the fields that I pass as the parameters with exactly the same type that is used in the FM definition.