How to configure guest and external access in Teams?

Sure, here are the steps to configure guest and external access in Microsoft Teams:

1. Sign in to the Microsoft Teams admin center: You need to have admin access to make these changes. Go to the Microsoft Teams admin center and sign in with your admin account.

2. Navigate to Org-wide settings: On the left-hand side, you will see a list of options. Click on "Org-wide settings".

3. Select 'Guest access' or 'External access': Under "Org-wide settings", you will see options for both 'Guest access' and 'External access'.

   • Guest Access: This allows individuals outside your organization to access teams and channels. They can participate in chats, meetings, and collaborate on documents.

   • External Access (federation): This allows your Teams users to communicate with users who are outside of your organization.

4. Configure the settings:

   • For Guest Access, you can toggle the switch to 'On' to allow guest access. You can also choose what guests are allowed to do, such as make private calls, share their screen, etc.

   • For External Access, you can toggle the switch to 'On' to allow external access. You can also add specific domains to allow or block.

5. Save your changes: After you've made your changes, don't forget to click 'Save'.

Remember, it can take up to 24 hours for these changes to take effect.