Re: If I already have a Adobe CC account and I've been given an Enterprise serial number, how can I apply the new serial number to my exisiting account?

Hi Paul,

Welcome to the Adobe community.

Adobe enterprise serial key works with creative cloud packager only. You would need to create an installation package with serial number license and deploy to your mac machine then.

Please visit the following article to see the Adobe creative cloud packager workflow : https://helpx.adobe.com/creative-cloud/packager.html?t2

Thanks,
Ashish