Block Copilot Studio access with Copilot for Microsoft 365 License

1. Check License Assignment: Open Microsoft 365 Administrator Center and navigate to Users > Active Users.
Select the target user and check their license assignment.
Ensure that the user does not have a license assigned that includes access to Copilot Studio.
2. Using Conditional Access Policies: Open the Microsoft 365 Security and Compliance Center and navigate to Conditional Access > Policies.
Create a new conditional access policy and select the target user or group.
Set the policy conditions to block access to the Copilot Studio URL or application.
3. Using a PowerShell script: Open Exchange Online PowerShell and run the following command to block access to Copilot Studio:
powershell
Set-CASMailbox -Identity email address removed for privacy reasons -EwsApplicationAccessPolicy EnforceBlockList -EwsBlockList “CopilotStudioURL”
 CopilotStudioURL replaced with the URL of Copilot Studio.
4. Contact Microsoft Support: If none of the above methods work, it is recommended to contact Microsoft Support team with detailed error messages and screenshots for further assistance.