Best practice: Data transfer between environments with pre existing data

Hey guys, is it possible to transfer data from one self-hosted instance with existing data to another env with pre-existing data? Is that possible without issues and how is the target instance reacting to that? WIll the instance be cleaned up due to the transfer?

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Yes it’s going to be cleaned up

Is this a best practice when moving data from staging to production or what should I consider in that case?