You have to set at least one allocation indicator

What causes this issue?

You did not select any allocation criteria. As a result, no purchase
order history records could be selected.

System Response

The system expects the following:
at least one of the fields <LS>Deliveries</> and <LS>Returns</> is
selected.
and
at least one of the fields <LS>Goods/services</> and <LS>Planned
delivery costs</> is selected.

How to fix this error?

Select at least one allocation criterion.
If you want to assign the invoice to goods receipts or purchase orders,
select <LS>Deliveries</>.
If you want to assign the invoice to returns, select <LS>Returns</>.
If you want to settle goods or services, select <LS>Goods/services</>.
If you want to settle planned delivery costs, select <LS>Planned
delivery costs</>.

Error message extract from SAP system. Copyright SAP SE.