Hi @Martin Higgs​ ,

As far as i know gMSA are not certified with Automation Anywhere. You can use service accounts with password never expires to install and configure AA products.

I'd recommend opening a support ticket with AA using below link

https://apeople.automationanywhere.com/s/support/p>

if you don't have access to the above link, Send an email to AA Support team "apeopleopsteam@automationanywhere.com" to get the access.