3547892 - "Down Payment Clearing" button is not available in app Create Supplier Invoice – Advanced (MIRO)

When creating supplier invoice in app Create Supplier Invoice – Advanced (MIRO), the "Down Payment Clearing" button is not available even though a down payment request has been created and down payment has been posted for the supplier.

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SAP S/4HANA Cloud Public Edition

1. Create purchase order with DP Category "Mandatory Down Payment".
2. Create down payment request for the PO in app Monitor Purchase Order Down Payments.
3. Create and post down payment in app Post Outgoing Payments.
4. Post goods receipt for the purchase order in app Post Goods Movement (MIGO).
5. Create supplier invoice in app Create Supplier Invoice – Advanced (MIRO), the button "Down Payment Clearing" is not available.

Fields "Purchasing Document" and "Purchasing Doc. Item" are not filled when creating down payment request in step 2.

Normally the down payment request and down payment should be linked with PO and displayed in PO history tab. This allows the system to derive the down payment when creating a supplier invoice with reference to the PO, and enables the down payment clearing option. 

Fill fields "Purchasing Document" and "Purchasing Doc. Item" when creating down payment request in app Monitor Purchase Order Down Payments:

If these two fields are not displayed in the app Manage Supplier Down Payment Requests, please refer to KBA "2866313 - App Manage Supplier Down Payment Requests purchasing fields missing" for more details.

Down Payment Clearing, Create Supplier Invoice - Advanced, MIRO, Monitor Purchase Order Down Payments, Purchasing Document, Purchasing Doc. Item , KBA , MM-FIO-IV-2CL , Fiori UI for Invoice Verification (Public Cloud) , Problem