SAP Message AO334 - Activity '&2' cannot be carried out because of alternate request

Diagnosis
Appropriation request &V1& is being submitted for approval.
One of the alternate requests for this appropriation request has one ofthe following statuses: 'For approval,' 'Approved,' 'Released,''Completed' or 'Technically completed.'

System Response
Therefore, activity &V2& cannot be carried out.

Procedure
Check your appropriation request &V1& and the alternate requests thatbelong to it.
Note:
It is only possible to implement ONE of a set of alternate requests.This means that activity &V2& can be carried out for only one of thealternates. For more information see the SAP library for IM.