Any REST compliant service should be able to be used by you. If it is used for standard, then you need to ensure that configs are accordingly maintained.
On an architecture basis, it is not recommended to mix services from different vendors.
Regards,
Sharath
Hello Swathi,
You can use any OData service in a custom Fiori application, but it would be very difficult to swap the standard service of any SAP delivered Fiori app for a 3rd party OData service.
Best regards
Frank
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