Error message : No administrator found for the task

Hi all,

I am testing Workflow for release of purchase order. I have copied the standard workflow WS20000075 and using it. After creating a new purchase order in ME21N depending on the value of the order it will be released by 2 users.

I have given my user id as one of the approver and a different id as second approver. I am able to release the PO and it goes to the second users inbox.

When i try to execute the workflow from the second user ID it gives a error message

"No administrator found for the task Message no. 5W141"

What could be the problem?

Regards,

RV