For that use-case I wouldn't implement templates. With templates you need to use automatically generated IP-ranges from a pool or have all sites use the same IP range. There's no local override for VLANs possible. https://documentation.meraki.com/Architectures_and_Best_Practices/Cisco_Meraki_Best_Practice_Design/Best_Practice_Design_-_MX_Security_and_SD-WAN/MX_Templates_Best_Practices If keeping the Wi-Fi settings in sync is important and they need to be changed often, I'd probably leverage the API. Once you have the script that sets the necessary settings, it's very easy to apply it to the three networkId's. To get going with the API's, start here: https://developer.cisco.com/meraki/build/meraki-postman-collection-getting-started/ Once you've got the hang of that and you want to turn it into a script, have a look at this: https://developer.cisco.com/meraki/build/automation-with-python-api-lab/
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