Urgent - Bidding Engine Start Conditions

Hi all,

i try to set up the Bidding Engine process.

I have a problem with the start condition of the Workflow.

It doesn´t work.

I set up WF - without approval

WS14500026 CHANGEVERSIONSAVED

WS14500026 SAVED

and just changed the role from the Standard one SAP_BBP_STAL_Manager - to a customer on Y_SAP_BBP_STAL_OPERAT_PURCHAS

I always get an error message

"Approval workflow is ambiguous. Inform system administrator "

What can i do?

Thx

Ralf