Is SCIM required for Microsoft Teams Direct Routing?

No, Microsoft Teams Direct Routing is for voice communication between Microsoft Teams and Genesys, while SCIM is used for provisioning of users in Genesys. You require SCIM if you want to see Microsoft Teams users and their presence in Genesys for transfers and directory lookup.

For more information, see:

• Configure Azure Active Directory for Genesys Cloud SCIM (Identity Management)
• Configure the Microsoft Teams integration
• Define your integration business model