Excel Online Cross Forest KCD Data Refresh Not Supported

Scenario: You configure Office Online Server with SharePoint 2013 or SharePoint 2016 and have configured Kerberos Constrained Delegation to a data warehouse to pull business intelligence data for your users. You have two Active Directory domains in separate forests in a 2-way transitive trust configuration (We will call them DomainA in Forest 1 and DomainB in…