No gotchas I can think of. But I'm going to assume you're prob moving an MX, I've used this doc before. Might want to take a look and read through it: https://documentation.meraki.com/Architectures_and_Best_Practices/Cisco_Meraki_Best_Practice_Design...

There doesn't appear to be a way to automate it as far as I know. You might want to look into creating a template for the new target network that would have your established config from your old one.