Not possible to create an inbound delivery

What causes this issue?

You cannot create an inbound delivery.
One of the following may be the cause:
The purchase order is blocked
Inbound deliveries were not intended for this purchase order
There are no more open order quantites in the shipping notification

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

IF &[SWITCH]RETAIL_CD/FT_EWM_SFWS_UI& = 'X'.
There is no merchandise distribution data. Create issue documents
(warehouse orders) for your procurement document.
ENDIF.

System Response

No inbound deliveries could be created.

How to fix this error?

Make sure that the purchase order is not blocked or choose a suitable
purchase order.

Error message extract from SAP system. Copyright SAP SE.