3627799 - External Number Ranges for the Supplier Invoice Verification in SAP S/4 HANA Public Cloud

External number range has been configured in the system for Supplier Invoice Verification and Despite correct configuration, the system continues to generate internal numbers during invoice posting.
Or 
Users are unable to enter or edit the invoice number manually during invoice creation in Logistics Invoice Verification (LIV). The field for entering an external document number is not available.
Or
System gives a and dump with Runtime Error: 'MESSAGE_TYPE_X'. The OData request processing has been abnormally terminated. 

SAP S/4HANA Cloud Public Edition

1. Set up the new number range interval with External ( ✔) using app "Manage Journal Entry Number Range" or through SSCUI 101702 - Define Document Number Ranges.
   
   
   
2. Assign the "Number Range No." to the document type through SSCUI - 101522 - Define Document Types.
   
   
3. Try to post with the same document type in the "Create Supplier Invoice" app.
   
   
4. After posting the Invoice, the system gives a dump and error as below. 
   
5. After changing the document type to "KR" or any other internal number range document type, the system allows posting an invoice. 

In SAP S/4HANA Cloud Public Edition, it is not possible to assign an external number range to supplier invoices.
Supplier invoices are designed to use internal number ranges only, as per standard SAP functionality.

External number ranges are not supported by the Supplier Invoice. 
As a possible workaround to capture an external number for supplier invoices, you may consider storing the external number in a text field, Reference Document Number field or another unused field. 

To request this functionality, please submit a feature request through the SAP Customer Influence site. This will allow our product management team to review and consider your request for future enhancements.
For more details on the SAP Customer Influence site, please refer to the following resources:
🔹 KBA 2963059
🔹 SAP Continuous Influence Blog

https://community.sap.com/t5/enterprise-resource-planning-q-a/external-number-range-for-invoices/qaq-p/4265257

API - https://help.sap.com/docs/SAP_S4HANA_CLOUD/bb9f1469daf04bd894ab2167f8132a1a/13c22c58f5809344e10000000a4450e5.html?version=2502.VAL&state=DRAFT

Supplier Invoice Number Range, RF_BELEG, Invoice, External Number , KBA , MM-IV-LIV-2CL , Logistics Invoice Verification (Public Cloud) , Problem