When you try to access a shared mailbox with ExtendSync Outlook Free Edition, you may see this message:
Message
Upgrade your plan to access shared mailbox feature
Why This Happens
Shared mailbox support is available with Standard and Enterprise plans. It isn’t included with Free Edition. This is expected behavior.
How to Resolve the Issue
Contact your organization’s ExtendSync administrator to discuss upgrading the plan. If you’re the administrator, contact CloudExtend Sales to review available plans.
What to Expect
After your organization upgrades to Standard or Enterprise, shared mailbox support will be available. Your administrator may need to confirm that the subscription and shared mailbox setup are configured for your users.
Need Help?
💬 Chat with us — Click the chat icon at the bottom-right of this page.
📧 Email: cloudextend-support@celigo.com

