Having recently gone through a merger, we have set up cross-tenant synchronisation. This is working fine and employees in company B can access Power Automate and Business Central Online in Tenant A.
However, we also have the Power Automate Connector in Business Central to enable us to to create flows from within Business Central, and when a synch'd user tries to create a flow, they get asked to authenticate and then get an error:
Permission denied due to missing connection ACL.
It then gives the UUID of the user at Tenant B and the AppID for Microsoft Flow - which when I check, the user has permission for (and as mentioned can make flows direct in Power Automate.
I can't work out why this isn't working - any advice?
Thanks
Chris