Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi @Alfred Apps,
I hope you’re having a great day.
When Microsoft 365 email stops working right after an overdue invoice is paid, the most common cause is that the Microsoft 365 tenant is still in a Suspended/Disabled subscription state, so Exchange Online access remains blocked until an admin reactivates the subscription (and confirms there is no remaining past‑due balance).
To help resolve this, please try the following as a Global Admin:
1/ Confirm the balance is fully cleared
- Sign in to the Microsoft 365 admin center (admin.microsoft.com) with a Global admin or Billing admin account.
- Go to Billing > Bills & payments and verify there’s no remaining past‑due invoice showing.
2/ Reactivate the Microsoft 365/Exchange Online subscription (if it shows Suspended/Disabled/Expired)
- In the admin center, go to Billing > Your products.
- Select the affected subscription.
- Under Subscription status, choose Reactivate / Reactivate subscription, then complete the prompts (including selecting/adding a payment method if prompted).
For more details, kindly refer to Reactivate your subscription in the Microsoft 365 admin center | Microsoft Learn
3/ Verify users still have valid licenses assigned
Even after billing is fixed, confirm each affected user still has an Exchange Online/Microsoft 365 license assigned:
- Users > Active users > select a user > Licenses and apps and confirm the correct license is enabled.
4/ Open a support request to billing team if the problem persists
If Billing > Your products shows Active and users are licensed, but Outlook/OWA still fails, the next best step is to open a support ticket from the Microsoft 365 admin center so support can remove any remaining tenant-level block.
For detailed instructions on how to get support, please refer to Get support - Microsoft 365 admin.
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