Diagnosis
'For approval' status was set for appropriation request &V1&. Since theapproval process uses workflow, you are required to enter the approversin partner management.
The applicant is not allowed as a workflow approver.
The applicant was entered as an approver, with partner function &V2& aspartner &V3&. There is no other approver entered.

System Response
The appropriation request cannot be set to 'for approval' status.

Procedure
Enter one or more other approvers.
If there is only one approver, it is not allowed to be the applicant.
Then you can set the status of the appropriation request to 'forapproval'.