3365465 - Error when creating Down Payment for Custom Purchase Order doc type

When attempting to create a Down Payment for a Purchase Order using a custom document type, an error is encountered with the message "Purchase Order still incomplete".

SAP S/4HANA 2308

1. Create a new Purchase Order.
2. In the Purchase Order creation form, select a custom document type.
3. Fill in the necessary details for the Purchase Order.
4. Save.
5. Set the Created Purchase Order with final invoiced and delivery complete.
6. Go to Monitor Purchase Order Down Payments.
7. Create a Down Payment for the created Purchase Order
8. Error "Purchase Order still incomplete".

Number range maintained for the Custom Purchase Order document type has less than 10 digits.

The current design of SAP S/4HANA Cloud is aligned with the use of 10-digit Purchase Order numbers. Please configure the Purchase Order number range to ensure it has a length of 10 digits; this adjustment should resolve the issue you encountered.

You can configure the number range in configuration 'Define Number Ranges for Purchasing Documents'.

Within the CE2402 release the system will also consider different number ranges.

2685355 - How to create a custom Purchasing Document Type in S/4HANA Cloud

Down Payment, Purchase Order, Custom, Purchase Order still incomplete , KBA , MM-FIO-PUR-PO , Fiori UI for Purchase Orders , Problem