sendmail dynamically

Hi All,

I am new to workflow .I have requirment to trigger workflow and send mail using person number(pernr). at this stage we are taking person number dynamically from bapi to BO , till BO i am able to get the number, but i am unable to send mail through workflow. I tried to pass email id dynamically since in BO KEY FIELD lenght is (70) and mail id length is 241.

Please guide me in this issue .

Thanks & Regadrs,

Padma