How to block T. Code

Use SM01

Hi, if we use SM01, once we lock, all user unable to access. Let say I want
to block for certain user only. How to do ?

Thank You.

Through SM01, we can block T.Code for all the users simultaneously. But i want to block for a particular user id. 
 
Let`s say I create a Role having all the authorization from PP Module except MFBF Trans.Code and assigned it to User PPCONS01. I also block all the Authorization Objects C_BACKFL, C_BFLS and C_BFLS_L from this Role of the MFBF Trans. Code. Still PPCONS01 are executing MFBF. I want to know how can I block from executing this Trans. Code by PPCONS01. The same problem occurs with ME51N Trans. Code of MM Module.

I want to block this Trans. Code, though i haven`t assign these Trans. Code to any Users, still they are executing.

remove auth from the users

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Hi, if we use SM01, once we lock, all user unable to
access. Let say I want
to block for certain user only. How to do ?

Thank You.

Hi, because I just want to temporary block the user only, after some
process then only release back the code. Beside from taken out the auth
from user, any other way to block it ?

Thank You.

You can lock the particular transaction code in SM01 so that user cant access it
 
bye

Thanks for your fast reply, if you using SM01 to block the Tcode,
everybody also cant access even sap* & DDIC also unable to access that
Tcode. Now the thing is I just want to block for certain user only (e.g. 2
users only). I can`t use SM01 right. May be have other way to block it. If
you know pls inform me.

Thank You.

Duplicate the tcode, lock the original tcode and give the new tcode to only
the respective users.