Restrict usage of Tocde ME2N to only 3 users at a given point of time

Question

Hi All,
The request from Project Manager is this:
We have to allow at any point of time only 3 users to use transaction code ME2N. He will authorize this Tcode to 10 people out of which at a time only 3 should be allowed to use it.
He is ready to modify SAP Program.
Kindly give your inputs
Regards,
Fawaz

Answer 1

Hi Fawaz,
I have an idea without changing the standard.
Block access for everyone to ME2N.
Create a Ztable(Say ZTAB_ME2N_COUNT) with Fields MANDT and CountME2N.
Then Create a new Report Program(say ZREP_ME2N) with the following Code;
Data : count type i.
Select SINGLE CountME2N from ZTAB_ME2N_COUNT INTO count.
IF Count GT 3.
Message 'You Are not authorised, Already 3 Users are Using this Tcode' TYPE 'I'.
LEAVE PROGRAM.
ELSE.
UPDATE ZTAB_ME2N_COUNT SET CountME2N = CountME2N + 1.
CALL TRANSACTION 'ME2N'.
UPDATE ZTAB_ME2N_COUNT SET CountME2N = CountME2N - 1.
ENDIF.
Save and Activate the program.
Now Create a ZTransaction (say ZME2N) and assign the above program to it.
Now Give Authorisation to 10 users to ZME2N.
This is the easiest way to achieve your requirement without changing standard SAP.
Hope you can convince your PM with this solution, Revert back if you have doubts.
Regards
Karthik D