Question
You work as a Systems Administrator for your company. The company has several departments including a Research and Development department.
The company has a subscription to Microsoft 365. All users in your company have a Microsoft 365 E5 license.
You have configured a team for each of the departments.
The Research & Development team has a channel named Design. The company plans to work with an external contractor to help design a new product. You have created a guest account for the contractor.
The contractor reports that he is unable to post to the Design channel.
You need to enable the contractor to post to the Design channel.
Which of the following actions should you perform?
- A. Configure the Global meeting policy in the Microsoft Teams admin center.
- B. Configure the external collaboration settings in Microsoft Entra ID.
- C. Configure the Global (Org-wide default) app permission policy in the Microsoft Teams admin center.
- D. Configure the Guest access settings in the Microsoft Teams admin center. Correct
Explanation
Guest access in Teams is an organization-wide setting in the Teams admin center (Users > Guest access); when it is off, guests cannot participate in teams and channels even though their Microsoft Entra guest account exists. The guest account already exists, so the Entra external collaboration settings, which control who can invite guests, are not the blocker. Meeting policies and app permission policies do not affect posting in a channel.
