You are creating a production order using app Create Production Order. After saving, there is an error message CO575 "Create order network: only internal numbers allowed to be assigned".
SAP S/4HANA Cloud
The error massage shows up because you are creating a production order which only allows internal number assignment, for example, collective orders. However, the order type you are using is configured to use external number range.
There are 2 possible solutions:
1. In SSCUI 102004 - Define Production Order Type, you can change the current order type's number range to an internal one.
2. Use another order type that uses an internal number range.
Create Production Order, number range, internal, external, SSCUI 102004 - Define Production Order Type, CO575, collective order, order type , KBA , PP-SFC-EXE , Order Execution , Problem