Restrict number of logins per user

Limits the number of login sessions per user with User Exits


* Transaction CMOD -> Utiliteis -> SAP Enhancements

* Exit Name SUSR0001

* Double click EXIT_SAPLSUSF_001

* Double click ZXUSRU01

* Insert -> include zsesschk.
* zsesschk limits the number of login sessions per user

* in a certain client

* It runs from user exit SUSR0001 after the SAP Login

* n-1 is the number of concurrent sessions allowed

TABLES: UINFO.

DATA: N TYPE I VALUE 2. "Upper limit of login sessions

DATA: OPCODE TYPE X VALUE 2, I TYPE I, A(60).

DATA: BEGIN OF BDC_TAB1 OCCURS 5.

INCLUDE STRUCTURE BDCDATA.

DATA: END OF BDC_TAB1.

DATA: BEGIN OF USR_TABL OCCURS 10.

INCLUDE STRUCTURE UINFO.

DATA: END OF USR_TABL.

* Exclude Limit login by Users

IF SY-UNAME <> 'XXX'

AND SY-UNAME <> 'XXX'.

CALL 'ThUsrInfo' ID 'OPCODE' FIELD OPCODE

ID 'TAB' FIELD USR_TABL-*SYS*.

LOOP AT USR_TABL.

IF SY-UNAME = USR_TABL-BNAME AND SY-MANDT = USR_TABL-MANDT.

I = I + 1.

ENDIF.

ENDLOOP.

IF I >= N.

A = 'You have already '.

A+17(2) = I - 1.

A+19(25) = 'login sessions in client '.

A+44(4) = SY-MANDT.

CALL FUNCTION 'POPUP_TO_INFORM'

EXPORTING

TITEL = 'UNSUCCESSFUL LOGIN'

TXT1 = A

TXT2 = 'You are not allowed to log in'.

MOVE: 'SAPMSSY0' TO BDC_TAB1-PROGRAM,

'120' TO BDC_TAB1-DYNPRO,

'X' TO BDC_TAB1-DYNBEGIN.

APPEND BDC_TAB1.CLEAR BDC_TAB1.

MOVE: 'BDC_OKCODE' TO BDC_TAB1-FNAM,

'/nex' TO BDC_TAB1-FVAL.

APPEND BDC_TAB1.CLEAR BDC_TAB1.

CALL TRANSACTION 'SM04' USING BDC_TAB1 MODE 'N'.

ENDIF.

ENDIF.