Enhancement with Event 4255 : How to check user's job profile?

Dear All,

I'm doing an enhancement with even 4255 (credit:authorization at function level). In the function module, I would like check the job profile (clerk, supervisor, manager) of the user running the transaction, so that I would be able to limit the transaction's authorization. For example, clerk can only process a credit with the amount of 600usd and below.

Now what I'm asking is How to check the job profile of a user who's running the transaction? What transaction code do we use to maintain job profile of a user?

thanks in advance.

Agung