"Can't Verify Subscription" or "No Subscription Found" error messages in Office Mobile
When you use Office Mobile for iPhone, you receive one of the following error messages:
Can't Verify Subscription
Please sign in to reactivate this app.
No Subscription Found
We couldn’t find a subscription connected to your account.
This issue occurs because a previously activated version of Office Mobile exists on the device, possibly from another subscription. Therefore, the new Office Professional Plus license cannot be applied.
To resolve this issue, follow these steps:
Verify that you have a license assigned to youin the Office 365 portal. To do this, follow these steps:
If you cannot sign in or do not see the Settings button, then you may not have administrative permissions or may not have a license assigned to you.
Sign in to the Office 365 portal.
In the left pane, select Subscriptions.
In the list of subscriptions and licenses, scroll down to the Office 365 <edition> section, and then look for The latest desktop version of Office. If you see this entry in the list, you have an Office subscription that's assigned correctly.
If you don't see a vertical scroll bar, hover the pointer over the list, press and hold the left mouse button, and then scroll.
If an entry for The latest desktop version of Office does not appear in the list, contact your administrator or go to the following website:
Verify the status of the service health for the Office Subscription service.
Third-party information disclaimer
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.
Still need help? Go to Microsoft Community.