SAP FORMAT_CHECK Function Module for Formal checks for the FUGR SSRV and FSRV

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FORMAT_CHECK is a standard format 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 Formal checks for the FUGR SSRV and FSRV 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 format check FM, simply by entering the name FORMAT_CHECK into the relevant SAP transaction such as SE37 or SE38.

Function Group: SSRV
Program Name: SAPLSSRV
Main Program: SAPLSSRV
Appliation area: S
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function FORMAT_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 'FORMAT_CHECK'"Formal checks for the FUGR SSRV and FSRV
  EXPORTING
   I_CHECKRULE =  "Rule for checking bank account number field
   I_CHECKFIELD =  "Check field
   I_CHECKLENGTH =  "Bank account number length
   I_CHECKMASK =  "Mask which should be checked against
   I_FNAME =  "Name of the check field

EXCEPTIONS
   NOT_VALID = 1 

.

Customer Function user exits

Below is a list of CUSTOMER FUNCTION exit user exits that are available within this program and maybe relevant for this FM.
EXIT_SAPLSSRV_001 Check of bank account number: User exit for checking entries
EXIT_SAPLSSRV_002 Check of bank account number: User exit for checking entries
EXIT_SAPLSSRV_003 User Exit: Bank Data Checks (SAPLSSRV)

IMPORTING Parameters details for FORMAT_CHECK

I_CHECKRULE - Rule for checking bank account number field

Data type: T005-PRBKN
Optional: No
Call by Reference: No ( called with pass by value option)

I_CHECKFIELD - Check field

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

I_CHECKLENGTH - Bank account number length

Data type: T005-LNBKN
Optional: No
Call by Reference: No ( called with pass by value option)

I_CHECKMASK - Mask which should be checked against

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

I_FNAME - Name of the check field

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

EXCEPTIONS details

NOT_VALID -

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

Copy and paste ABAP code example for FORMAT_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 FORMAT_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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