SAP DDUT_FORKEY_CHECK Function Module for DD: Foreign Key Check for Values in Single Fields

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DDUT_FORKEY_CHECK is a standard ddut forkey check SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for DD: Foreign Key Check for Values in Single Fields processing and below is the pattern details for this FM, showing its interface including any import and export parameters, exceptions etc. there is also a full "cut and paste" ABAP pattern code example, along with implementation ABAP coding, documentation and contribution comments specific to this or related objects.

See here to view full function module documentation and code listing for ddut forkey check FM, simply by entering the name DDUT_FORKEY_CHECK into the relevant SAP transaction such as SE37 or SE38.

Function Group: SDFC
Program Name: SAPLSDFC
Main Program: SAPLSDFC
Appliation area: S
Release date: 30-Apr-1999
Mode(Normal, Remote etc): Normal Function Module
Update:

Function DDUT_FORKEY_CHECK pattern details

In-order to call this FM within your sap programs, simply using the below ABAP pattern details to trigger the function call...or see the full ABAP code listing at the end of this article. You can simply cut and paste this code into your ABAP progrom as it is, including variable declarations.

CALL FUNCTION 'DDUT_FORKEY_CHECK'"DD: Foreign Key Check for Values in Single Fields
  EXPORTING
   TABNAME =  "Foreign key table name
*  FIELDNAME =  "Check field name
   VALUE_LIST =  "Value list (in structure of foreign key table)
*  CLIENT_SPECIFIED = ' ' "Flag if client specified
*  ACCEPT_INITIAL = ' ' "Accept intitial values (if 'X')
*  ACCEPT_ALL_INITIAL = ' ' "If 'X', accept initial values in foreign key fields
*  ADAPTED_FIELDVALUES =  "List of Values for Cross-Structure Foreign Key Fields

TABLES
*  COND_TAB =  "Lines of WHERE conditions
*  ADAPTED_FIELDS =  "Supplement for cross-structure foreign keys
*  FAILURE_TAB =  "Messages for failed checks

EXCEPTIONS
   FORKEY_NOT_DEFINED = 1    TABLE_NOT_ACTIVE = 2    FIELD_UNKNOWN = 3 

.

IMPORTING Parameters details for DDUT_FORKEY_CHECK

TABNAME - Foreign key table name

Data type: TABNAME
Optional: No
Call by Reference: No ( called with pass by value option)

FIELDNAME - Check field name

Data type: FIELDNAME
Optional: Yes
Call by Reference: No ( called with pass by value option)

VALUE_LIST - Value list (in structure of foreign key table)

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

CLIENT_SPECIFIED - Flag if client specified

Data type: DDBOOL_D
Default: SPACE
Optional: Yes
Call by Reference: No ( called with pass by value option)

ACCEPT_INITIAL - Accept intitial values (if 'X')

Data type: DDBOOL_D
Default: SPACE
Optional: Yes
Call by Reference: No ( called with pass by value option)

ACCEPT_ALL_INITIAL - If 'X', accept initial values in foreign key fields

Data type: DDBOOL_D
Default: SPACE
Optional: Yes
Call by Reference: No ( called with pass by value option)

ADAPTED_FIELDVALUES - List of Values for Cross-Structure Foreign Key Fields

Data type: DCFIELDDATS
Optional: Yes
Call by Reference: No ( called with pass by value option)

TABLES Parameters details for DDUT_FORKEY_CHECK

COND_TAB - Lines of WHERE conditions

Data type: DDWHERECND
Optional: Yes
Call by Reference: No ( called with pass by value option)

ADAPTED_FIELDS - Supplement for cross-structure foreign keys

Data type: DDTABFDS
Optional: Yes
Call by Reference: No ( called with pass by value option)

FAILURE_TAB - Messages for failed checks

Data type: DDFKEYRC
Optional: Yes
Call by Reference: No ( called with pass by value option)

EXCEPTIONS details

FORKEY_NOT_DEFINED - Foreign key not defined in DD

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

TABLE_NOT_ACTIVE - Foreign key table not active

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

FIELD_UNKNOWN - Check field not active

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

Copy and paste ABAP code example for DDUT_FORKEY_CHECK Function Module

The ABAP code below is a full code listing to execute function module POPUP_TO_CONFIRM including all data declarations. The code uses the original data declarations rather than the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the newer method of declaring data variables on the fly. This will allow you to compare and fully understand the new inline method. Please note some of the newer syntax such as the @DATA is not available until a later 4.70 service pack (SP8), which i why i have stuck to the origianl for this example.

ABAP code using 7.40 inline data declarations to call FM DDUT_FORKEY_CHECK

The below ABAP code uses the newer in-line data declarations. This allows you to see the coding differences/benefits of the later inline syntax. Please note some of the newer syntax below, such as the @DATA is not available until 4.70 EHP 8.

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