Any experience with merging two LearnCenter instances into one?

Summary: My organization is looking to combine two Learn instances into one. We had two instances due two different organizations, but are looking at combining the two Learn instances into one. Basically our integration feeds all users into both instances, but each instance has separate learning plans, ILTs, etc. Any tips or helpful documentation? As we move forward I will be reaching out to Oracle Support for help, but wanted to ping the community to see others experiences with this. Thanks.

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