Which Portals Create Shared Mailbox and Grant Send As?
Short answer
Both tasks—creating shared mailbox Mbox1 and granting User1 Send As permission—can be done in either the Microsoft 365 admin center or the Exchange admin center.
Question
You have a Microsoft 365 E5 subscription that contains a user named User1.
You need to perform the following actions:
• Create a shared mailbox named Mbox1 in the subscription.
• Grant User1 the Send As permission for Mbox1.
Which Microsoft 365 portals can you use to perform each task? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Key Takeaways
The question tests knowledge of admin-center overlap for shared mailbox lifecycle tasks, and the trap is assuming mailbox creation is exclusive to one portal while delegation lives only in the other.
This MS-102 hotspot asks which Microsoft 365 portals can create shared mailbox Mbox1 and grant User1 Send As permission on it. Both the Microsoft 365 admin center and the Exchange admin center can perform both tasks.
Common mistake: The common error is pairing shared mailbox creation with only the Microsoft 365 admin center and Send As with only the Exchange admin center; in reality both portals expose shared mailbox creation and the Send As/delegation controls.
Expert Analysis
Why the Answer Is Correct
Both required actions can be completed in either portal, so both selections apply to each task. The Microsoft 365 admin center creates Mbox1 under Teams & groups > Shared mailboxes > Add a shared mailbox, and the same blade's delegation settings let you add User1 with Send As rights. The Exchange admin center accomplishes both under Recipients > Mailboxes, using Add a shared mailbox for creation and the mailbox's Delegation settings for Send As. This dual capability is exactly what makes the hotspot answer both portals for both rows.
Why Other Candidate Answers Are Wrong
Selecting only the Microsoft 365 admin center for creation but only the Exchange admin center for Send As implies an artificial split that the product does not enforce, and choosing a single portal for both tasks undercounts the available options. Portals such as the Microsoft Entra admin center or the Teams admin center do not host shared mailbox creation or Send As delegation at all, so any selection naming them is invalid. Because each correct selection earns a point, omitting a valid portal loses credit even if the other choice is right.
Community Comment Notes
MarcoHurry agreed with the shared approach, laying out both paths: "Microsoft 365 Admin Center → Teams & Groups → Shared mailboxes" and "Exchange Admin Center (EAC) → Recipients → Mailboxes → Add a shared mailbox." He then summarized the reasoning with the fragment "you can set the delegated send-as permissions too," meaning creation and Send As stay available together in either place. No other comments disputed this overlap.
Official Reference
- https://learn.microsoft.com/en-us/microsoft-365/admin/email/create-a-shared-mailbox
- https://learn.microsoft.com/en-us/exchange/recipients-in-exchange-online/manage-permissions-for-recipients
These links open the official vendor documentation in a new tab.
Exam Strategy
For hotspot items, evaluate each task independently instead of assuming portals are mutually exclusive; shared mailbox duties in Microsoft 365 are deliberately duplicated between the Microsoft 365 and Exchange admin centers. Only exclude a portal when the feature genuinely does not exist there, such as Entra or Teams admin centers.
Frequently Asked Questions
Can I create shared mailbox Mbox1 in the Microsoft 365 admin center?
Where do I grant Send As permission for a shared mailbox?
Discussion 1 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 1
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MarcoHurry 👍 1Yes, I agree on the given answer. Microsoft 365 Admin Center → Teams & Groups → Shared mailboxes → Add a shared mailbox Exchange Admin Center (EAC) → Recipients → Mailboxes → Add a shared mailbox As far as you can add the shared mailbox, you can set the delegated send-as permissions too
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