BPS STS e-mail adress for substitutes (of person responsible)

Hi,

STS supports only the automatic determination of the e-mail address of the person responsible (looking at user data / su01).

<b>I search for an automatic determination of the e-mail for the substitutes of the responsible person.</b>

The solution to enter it manually by seperating with ";" is not reasonable.

Has anybody an idea to realize it?

Or has somebody hints to change the sts customizing by apap coding ?

Thanks

Benjamin Geng