Hi @Adam01 ,
The non-interactive account information needs to be entered to each TM1 instance. Pulse still needs one IBM IB account in the Environments page to find all TM1 instances but then it is going to use the non-interactive account for all TM1 REST API queries.
More information in the following article: Connecting Pulse to a PA SaaS instance with the non-interactive account - Cubewise CODE
Cheers,
Vincent