ABAP Select data from SAP table PFICOSSPUNION into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PFICOSSPUNION table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to PFICOSSPUNION. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the PFICOSSPUNION table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_PFICOSSPUNION TYPE STANDARD TABLE OF PFICOSSPUNION,
      WA_PFICOSSPUNION TYPE PFICOSSPUNION,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <PFICOSSPUNION> TYPE PFICOSSPUNION.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PFICOSSPUNION.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PFICOSSPUNION
  INTO TABLE IT_PFICOSSPUNION.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PFICOSSPUNION
*  INTO TABLE @DATA(IT_PFICOSSPUNION2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_PFICOSSPUNION INDEX 1 INTO DATA(WA_PFICOSSPUNION2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PFICOSSPUNION ASSIGNING <PFICOSSPUNION>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PFICOSSPUNION>-MANDT = 1.
<PFICOSSPUNION>-OBJNR = 1.
<PFICOSSPUNION>-GJAHR = 1.
<PFICOSSPUNION>-WRTTP = 1.
<PFICOSSPUNION>-VERSN = 1.

ENDLOOP.

LOOP AT IT_PFICOSSPUNION INTO WA_PFICOSSPUNION.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PFICOSSPUNION-KSTAR, sy-vline,
  WA_PFICOSSPUNION-HRKFT, sy-vline,
  WA_PFICOSSPUNION-VRGNG, sy-vline,
  WA_PFICOSSPUNION-BEKNZ, sy-vline,
  WA_PFICOSSPUNION-PAROB, sy-vline,
  WA_PFICOSSPUNION-USPOB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PFICOSSPUNION you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_PFICOSSPUNION TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_PFICOSSPUNION INTO WA_PFICOSSPUNION.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WRTTP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WRTTP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WRTTP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-VERSN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-VERSN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KSTAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-KSTAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-KSTAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BEKNZ, internal->external for field BEKNZ
CALL FUNCTION 'CONVERSION_EXIT_BEKNZ_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-BEKNZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-BEKNZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-MEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG001
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG001
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG001.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG002
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG002
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG002.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG003
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG003
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG003.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG004
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG004
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG004.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG005
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG005
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG005.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG006
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG006
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG006.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG007
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG007
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG007.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG008
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG008
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG008.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG009
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG009
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG009.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG010
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG010
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG010.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG011
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG011
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG011.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG012
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG012
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG012.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG013
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG013
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG013.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG014
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG014
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG014.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG015
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG015
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG015.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOG016
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WOG016
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WOG016.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG001
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG001
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG001.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG002
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG002
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG002.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG003
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG003
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG003.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG004
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG004
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG004.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG005
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG005
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG005.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG006
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG006
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG006.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG007
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG007
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG007.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG008
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG008
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG008.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG009
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG009
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG009.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG010
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG010
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG010.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG011
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG011
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG011.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG012
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG012
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG012.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG013
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG013
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG013.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG014
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG014
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG014.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG015
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG015
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG015.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKG016
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKG016
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKG016.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF001
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF001
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF001.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF002
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF002
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF002.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF003
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF003
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF003.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF004
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF004
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF004.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF005
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF005
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF005.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF006
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF006
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF006.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF007
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF007
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF007.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF008
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF008
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF008.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF009
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF009
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF009.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF010
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF010
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF010.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF011
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF011
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF011.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF012
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF012
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF012.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF013
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF013
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF013.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF014
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF014
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF014.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF015
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF015
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF015.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKF016
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PFICOSSPUNION-WKF016
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFICOSSPUNION-WKF016.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PFICOSSPUNION_STR, 
MANDT TYPE STRING,
OBJNR TYPE STRING,
GJAHR TYPE STRING,
WRTTP TYPE STRING,
VERSN TYPE STRING,
KSTAR TYPE STRING,
HRKFT TYPE STRING,
VRGNG TYPE STRING,
BEKNZ TYPE STRING,
PAROB TYPE STRING,
USPOB TYPE STRING,
CTRLGORIGINCLASSIFICATION TYPE STRING,
MEINH TYPE STRING,
ACCOUNTASSIGNMENTTYPE TYPE STRING,
WOG001 TYPE STRING,
WOG002 TYPE STRING,
WOG003 TYPE STRING,
WOG004 TYPE STRING,
WOG005 TYPE STRING,
WOG006 TYPE STRING,
WOG007 TYPE STRING,
WOG008 TYPE STRING,
WOG009 TYPE STRING,
WOG010 TYPE STRING,
WOG011 TYPE STRING,
WOG012 TYPE STRING,
WOG013 TYPE STRING,
WOG014 TYPE STRING,
WOG015 TYPE STRING,
WOG016 TYPE STRING,
WKG001 TYPE STRING,
WKG002 TYPE STRING,
WKG003 TYPE STRING,
WKG004 TYPE STRING,
WKG005 TYPE STRING,
WKG006 TYPE STRING,
WKG007 TYPE STRING,
WKG008 TYPE STRING,
WKG009 TYPE STRING,
WKG010 TYPE STRING,
WKG011 TYPE STRING,
WKG012 TYPE STRING,
WKG013 TYPE STRING,
WKG014 TYPE STRING,
WKG015 TYPE STRING,
WKG016 TYPE STRING,
WKF001 TYPE STRING,
WKF002 TYPE STRING,
WKF003 TYPE STRING,
WKF004 TYPE STRING,
WKF005 TYPE STRING,
WKF006 TYPE STRING,
WKF007 TYPE STRING,
WKF008 TYPE STRING,
WKF009 TYPE STRING,
WKF010 TYPE STRING,
WKF011 TYPE STRING,
WKF012 TYPE STRING,
WKF013 TYPE STRING,
WKF014 TYPE STRING,
WKF015 TYPE STRING,
WKF016 TYPE STRING,
MEG001 TYPE STRING,
MEG002 TYPE STRING,
MEG003 TYPE STRING,
MEG004 TYPE STRING,
MEG005 TYPE STRING,
MEG006 TYPE STRING,
MEG007 TYPE STRING,
MEG008 TYPE STRING,
MEG009 TYPE STRING,
MEG010 TYPE STRING,
MEG011 TYPE STRING,
MEG012 TYPE STRING,
MEG013 TYPE STRING,
MEG014 TYPE STRING,
MEG015 TYPE STRING,
MEG016 TYPE STRING,
MEF001 TYPE STRING,
MEF002 TYPE STRING,
MEF003 TYPE STRING,
MEF004 TYPE STRING,
MEF005 TYPE STRING,
MEF006 TYPE STRING,
MEF007 TYPE STRING,
MEF008 TYPE STRING,
MEF009 TYPE STRING,
MEF010 TYPE STRING,
MEF011 TYPE STRING,
MEF012 TYPE STRING,
MEF013 TYPE STRING,
MEF014 TYPE STRING,
MEF015 TYPE STRING,
MEF016 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PFICOSSPUNION_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_PFICOSSPUNION_STR-MANDT sy-vline 
WA_PFICOSSPUNION_STR-OBJNR sy-vline 
WA_PFICOSSPUNION_STR-GJAHR sy-vline 
WA_PFICOSSPUNION_STR-WRTTP sy-vline 
WA_PFICOSSPUNION_STR-VERSN sy-vline 
WA_PFICOSSPUNION_STR-KSTAR sy-vline 
WA_PFICOSSPUNION_STR-HRKFT sy-vline 
WA_PFICOSSPUNION_STR-VRGNG sy-vline 
WA_PFICOSSPUNION_STR-BEKNZ sy-vline 
WA_PFICOSSPUNION_STR-PAROB sy-vline 
WA_PFICOSSPUNION_STR-USPOB sy-vline 
WA_PFICOSSPUNION_STR-CTRLGORIGINCLASSIFICATION sy-vline 
WA_PFICOSSPUNION_STR-MEINH sy-vline 
WA_PFICOSSPUNION_STR-ACCOUNTASSIGNMENTTYPE sy-vline 
WA_PFICOSSPUNION_STR-WOG001 sy-vline 
WA_PFICOSSPUNION_STR-WOG002 sy-vline 
WA_PFICOSSPUNION_STR-WOG003 sy-vline 
WA_PFICOSSPUNION_STR-WOG004 sy-vline 
WA_PFICOSSPUNION_STR-WOG005 sy-vline 
WA_PFICOSSPUNION_STR-WOG006 sy-vline 
WA_PFICOSSPUNION_STR-WOG007 sy-vline 
WA_PFICOSSPUNION_STR-WOG008 sy-vline 
WA_PFICOSSPUNION_STR-WOG009 sy-vline 
WA_PFICOSSPUNION_STR-WOG010 sy-vline 
WA_PFICOSSPUNION_STR-WOG011 sy-vline 
WA_PFICOSSPUNION_STR-WOG012 sy-vline 
WA_PFICOSSPUNION_STR-WOG013 sy-vline 
WA_PFICOSSPUNION_STR-WOG014 sy-vline 
WA_PFICOSSPUNION_STR-WOG015 sy-vline 
WA_PFICOSSPUNION_STR-WOG016 sy-vline 
WA_PFICOSSPUNION_STR-WKG001 sy-vline 
WA_PFICOSSPUNION_STR-WKG002 sy-vline 
WA_PFICOSSPUNION_STR-WKG003 sy-vline 
WA_PFICOSSPUNION_STR-WKG004 sy-vline 
WA_PFICOSSPUNION_STR-WKG005 sy-vline 
WA_PFICOSSPUNION_STR-WKG006 sy-vline 
WA_PFICOSSPUNION_STR-WKG007 sy-vline 
WA_PFICOSSPUNION_STR-WKG008 sy-vline 
WA_PFICOSSPUNION_STR-WKG009 sy-vline 
WA_PFICOSSPUNION_STR-WKG010 sy-vline 
WA_PFICOSSPUNION_STR-WKG011 sy-vline 
WA_PFICOSSPUNION_STR-WKG012 sy-vline 
WA_PFICOSSPUNION_STR-WKG013 sy-vline 
WA_PFICOSSPUNION_STR-WKG014 sy-vline 
WA_PFICOSSPUNION_STR-WKG015 sy-vline 
WA_PFICOSSPUNION_STR-WKG016 sy-vline 
WA_PFICOSSPUNION_STR-WKF001 sy-vline 
WA_PFICOSSPUNION_STR-WKF002 sy-vline 
WA_PFICOSSPUNION_STR-WKF003 sy-vline 
WA_PFICOSSPUNION_STR-WKF004 sy-vline 
WA_PFICOSSPUNION_STR-WKF005 sy-vline 
WA_PFICOSSPUNION_STR-WKF006 sy-vline 
WA_PFICOSSPUNION_STR-WKF007 sy-vline 
WA_PFICOSSPUNION_STR-WKF008 sy-vline 
WA_PFICOSSPUNION_STR-WKF009 sy-vline 
WA_PFICOSSPUNION_STR-WKF010 sy-vline 
WA_PFICOSSPUNION_STR-WKF011 sy-vline 
WA_PFICOSSPUNION_STR-WKF012 sy-vline 
WA_PFICOSSPUNION_STR-WKF013 sy-vline 
WA_PFICOSSPUNION_STR-WKF014 sy-vline 
WA_PFICOSSPUNION_STR-WKF015 sy-vline 
WA_PFICOSSPUNION_STR-WKF016 sy-vline 
WA_PFICOSSPUNION_STR-MEG001 sy-vline 
WA_PFICOSSPUNION_STR-MEG002 sy-vline 
WA_PFICOSSPUNION_STR-MEG003 sy-vline 
WA_PFICOSSPUNION_STR-MEG004 sy-vline 
WA_PFICOSSPUNION_STR-MEG005 sy-vline 
WA_PFICOSSPUNION_STR-MEG006 sy-vline 
WA_PFICOSSPUNION_STR-MEG007 sy-vline 
WA_PFICOSSPUNION_STR-MEG008 sy-vline 
WA_PFICOSSPUNION_STR-MEG009 sy-vline 
WA_PFICOSSPUNION_STR-MEG010 sy-vline 
WA_PFICOSSPUNION_STR-MEG011 sy-vline 
WA_PFICOSSPUNION_STR-MEG012 sy-vline 
WA_PFICOSSPUNION_STR-MEG013 sy-vline 
WA_PFICOSSPUNION_STR-MEG014 sy-vline 
WA_PFICOSSPUNION_STR-MEG015 sy-vline 
WA_PFICOSSPUNION_STR-MEG016 sy-vline 
WA_PFICOSSPUNION_STR-MEF001 sy-vline 
WA_PFICOSSPUNION_STR-MEF002 sy-vline 
WA_PFICOSSPUNION_STR-MEF003 sy-vline 
WA_PFICOSSPUNION_STR-MEF004 sy-vline 
WA_PFICOSSPUNION_STR-MEF005 sy-vline 
WA_PFICOSSPUNION_STR-MEF006 sy-vline 
WA_PFICOSSPUNION_STR-MEF007 sy-vline 
WA_PFICOSSPUNION_STR-MEF008 sy-vline 
WA_PFICOSSPUNION_STR-MEF009 sy-vline 
WA_PFICOSSPUNION_STR-MEF010 sy-vline 
WA_PFICOSSPUNION_STR-MEF011 sy-vline 
WA_PFICOSSPUNION_STR-MEF012 sy-vline 
WA_PFICOSSPUNION_STR-MEF013 sy-vline 
WA_PFICOSSPUNION_STR-MEF014 sy-vline 
WA_PFICOSSPUNION_STR-MEF015 sy-vline 
WA_PFICOSSPUNION_STR-MEF016 sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.