Microsoft Q&A platform doesn't support Dynamics 365 questions at this time. Dynamics 365 is supported on their own forums.
To receive insights from the targetted audience on Dynamics 365 related questions, I would suggest you to just re-post the question here:
Dynamics 365 Customer Service Forum
See -Route cases using basic routing rulesets
Dynamics 365 Customer Service Forum | migration-of-routing-rule-sets