SSAS Tabular 2017 Oauth2 Credential Refresh

[SeattlePowerBI]

I have an SSAS 2017 Tabular model hosted on prem. It is pulling data from the Dynamics 365 OData feed and using OAuth2. The problem i am having is that one authenticated, OAuth2 issues an access token and it expires after an hour. So, I'm able to automate processing of hte model using SQL Agent for 1 hour, and then everything fails. Can anyone help with how to automate the refresh of credentials or whether that is possible with SSAS 2017 on prem?