SAP L_REF_EXTERNAL_NUMBER_CHECK Function Module for Checks external reference number for internal number ranges and table

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L_REF_EXTERNAL_NUMBER_CHECK is a standard l ref external number 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 Checks external reference number for internal number ranges and table 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 l ref external number check FM, simply by entering the name L_REF_EXTERNAL_NUMBER_CHECK into the relevant SAP transaction such as SE37 or SE38.

Function Group: LSAM
Program Name: SAPLLSAM
Main Program: SAPLLSAM
Appliation area: L
Release date: 24-Apr-1995
Mode(Normal, Remote etc): Normal Function Module
Update:

Function L_REF_EXTERNAL_NUMBER_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 'L_REF_EXTERNAL_NUMBER_CHECK'"Checks external reference number for internal number ranges and table
  EXPORTING
   I_LGNUM =  "Whse number
   I_REFNR =  "External reference no. to be checked
*  I_NUMBER_RANGE_NR =  "Number range from warehouse no.table (T340D)

 IMPORTING
   E_ANSWER =  "Reply whether external number o.k. CHAR(1)

EXCEPTIONS
   REFNR_BLOCKED = 1 

.

IMPORTING Parameters details for L_REF_EXTERNAL_NUMBER_CHECK

I_LGNUM - Whse number

Data type: T311-LGNUM
Optional: No
Call by Reference: No ( called with pass by value option)

I_REFNR - External reference no. to be checked

Data type: T311-REFNR
Optional: No
Call by Reference: No ( called with pass by value option)

I_NUMBER_RANGE_NR - Number range from warehouse no.table (T340D)

Data type: T340D-NUKRF
Optional: Yes
Call by Reference: No ( called with pass by value option)

EXPORTING Parameters details for L_REF_EXTERNAL_NUMBER_CHECK

E_ANSWER - Reply whether external number o.k. CHAR(1)

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

EXCEPTIONS details

REFNR_BLOCKED - Reference number is blocked

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

Copy and paste ABAP code example for L_REF_EXTERNAL_NUMBER_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 L_REF_EXTERNAL_NUMBER_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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