hi @Daniele_Longo !!
Welcome to our community
You cannot update objects with graphql. We only expose graphql for reading/querying
For updating objects, you need to use our REST endpoints. For example, this is the one you need to update an object:
Note that while GRAPHQL and REST APIs are convenient, whenever you need more performance, for operations like batch updating, inserting, querying, etc, we suggest using the client, as it leverages GRPC and delivers a lot more performance.
Let me know if this helps!
Thanks!