call Tcode S_alr_87013560 with input values when execute the workitem

hi all

My requirment is to call report S_alr_87013560 with value in input fields ,when user execute the work item .

this report needs input 1 - controlling area

on next screen--- 2- Database profile .

then project ID and cost...

and this is the first activity of workflow definition.

Please advice me on the same.

Thanks in advance.

Deepanker Dwivedi