3398391 - 'No approver found; task is unassigned' on supplier invoice even if self-approval is scoped

System cannot determine the approver and raise the error 'No approver found; task is unassigned' on supplier invoice. 

The self-approval for supplier invoice is scoped and the invoice employee responsible is also the cost center manager.

Why system doesn't allow direct posting of the invoice?

SAP Business ByDesign

1. Go to Supplier Invoicing work center.
2. Go to Invoices and Credit Memos view.
3. Filter the list 'All Documents'.
4. Search and open the affected supplier invoice.
5. Navigate to Approval tab, you see the error  'No approver found; task is unassigned'.

The work distribution on approval rule is 'Approval by Cost Assignment'.

However, self-approval question only considers the cases where the task is generated by work distribution: 'Direct Approvers'. This question is not applicable for other work distributions.

That's why when the invoice employee responsible is also the cost center manager, system will create an unassigned task and will not assigned to user.

Please ask the key users to assign the unassigned task from application user management and get it approved by whoever they feel is correct to approve in this situation.

2854701 - Error: No approver found; task is unassigned

2883914 - Supplier invoice self approval

2951476 - Supplier invoice bypass the approval and directly posted, though self-approval is enabled

No approver found; task is unassigned, Supplier invoice, Self-approval, Cost center manager , KBA , SRD-SRM-SI , Supplier Invoicing , How To