SAP BAPI_USER_EXISTENCE_CHECK Function Module for Check a user exists
BAPI_USER_EXISTENCE_CHECK is a standard bapi user existence 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 Check a user exists 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 bapi user existence check FM, simply by entering the name BAPI_USER_EXISTENCE_CHECK into the relevant SAP transaction such as SE37 or SE38.
Function Group: SU_USER
Program Name: SAPLSU_USER
Main Program: SAPLSU_USER
Appliation area: S
Release date: 10-Apr-2000
Mode(Normal, Remote etc): Remote-Enabled
Update:

Function BAPI_USER_EXISTENCE_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 'BAPI_USER_EXISTENCE_CHECK'"Check a user exists.
EXPORTING
USERNAME = "User Name
IMPORTING
RETURN = "Return
IMPORTING Parameters details for BAPI_USER_EXISTENCE_CHECK
USERNAME - User Name
Data type: BAPIBNAME-BAPIBNAMEOptional: No
Call by Reference: No ( called with pass by value option)
EXPORTING Parameters details for BAPI_USER_EXISTENCE_CHECK
RETURN - Return
Data type: BAPIRET2Optional: No
Call by Reference: No ( called with pass by value option)
Copy and paste ABAP code example for BAPI_USER_EXISTENCE_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.| DATA: | ||||
| lv_return | TYPE BAPIRET2, " | |||
| lv_username | TYPE BAPIBNAME-BAPIBNAME. " |
|   CALL FUNCTION 'BAPI_USER_EXISTENCE_CHECK' "Check a user exists |
| EXPORTING | ||
| USERNAME | = lv_username | |
| IMPORTING | ||
| RETURN | = lv_return | |
| . " BAPI_USER_EXISTENCE_CHECK | ||
ABAP code using 7.40 inline data declarations to call FM BAPI_USER_EXISTENCE_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.| "SELECT single BAPIBNAME FROM BAPIBNAME INTO @DATA(ld_username). | ||||
Search for further information about these or an SAP related objects