Dunning notice to multiple people

Hi ,

i am printing dunning letter from F150 Tcode. I observed that we can print or fax  or  send email as attachement for single user.

PRINT_DUNNING_NOTICE

      Ld_addr = Ls_tmp-Address.    

i found above logic in preparing the recipient email id. But now my requirement is i need to send notice as email for business parters to the customer

we maintained one custom table there we maintain all business partners for the customer .

So how to maintain all email ids of parterns..I checked in custom FM maintained in FIBF. But no use of it.

SAP Standard program is suing class '  cl_bcs' to send emails

Please if you have sample code pls send me.

Regards

Ramakrishnaiah Y