Scenario: Client wants to restrict the user to login from any other terminal except allocated one.
Step 1 : Use Function Exit : EXIT_SAPLSUSF_001 which is called immediate after login.
Step 2 : Create Z table which contain User Id, IP Address, and Terminal Name.
Step 3 : call function module TH_USER_INFO in function exit EXIT_SAPLSUSF_001 include : ZXUSRU01
Here TERMINAL is terminal name and ADDRSTR is IP address
step 4 : If it runs first time add user id, IP address and Terminal Id in table from next time validate from Z table.
step 5 : use function module WS_MSG to raise error.
step 6 : call ‘SYST_LOGOFF’ if user is not authorize.
Remarks : Do not use any other method to raise error, because…….
if user is not authorize still he/she can login using Create Session
WS_MSG gives only below options.