Can I use a Copilot with Microsoft 365 even if they are licensed in different regions?

Hi, I work in a company that has offices in Australia, New Zealand and Singapore. My Singapore-based office has decided to adopt Copilot for our work tasks and we wish to engage a Singapore vendor to get the necessary licenses. However, our Microsoft 365 licenses are from New Zealand. Will this pose a problem?

We really want to engage the Singapore vendor because of how we'd be able to correspond more closely regarding the Copilot functionality. I did a preliminary search online and the information I found shows that this arrangement should be fine since Microsoft 365 and Copilot are separate products and it doesn't matter if they are bought from different regions (save that it'll affect where you get customer support from, etc). Can I confirm my understanding with the community?