in my project, i'm using Sales_Order_Create Service. In my use case, it is required to change some business logic in the backend: Gateway Netweaver (create deep entity method). I used the approach of create new Project(child), and then Redefine > OData service(GW). But when i debugg and start my Fiori sales order create app(extended app), i see that it sometimes still using the standard service methods(Parent) , especially in order creation .
Should i overwrite extended service? but how can i get my standard service again once it's overwritten in case i want to reuse it in other projects ?
If no, is there any solution to modify business logic(redefine methods) in child service?
How to make my Fiori extended application use this child service, (even if i replaced the service with New > Extension > Replace Service).
Thank you.