Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi @Florence Braut,
Thank you for reaching out to Microsoft Q&A forum.
The Error Code 43881 you’re seeing usually means Microsoft wasn’t able to complete the payment or account‑verification step during a purchase or trial activation. Your SID/cV/TID values aren’t the problem - they’re simply diagnostic references that Microsoft Support uses to trace the failed verification event. Based on similar documented cases, the issue is most often related to billing‑profile mismatches or a validation step that gets stuck on Microsoft’s backend.
Below are a few steps you can try to ensure everything is set up correctly:
1/ Review your Billing Profile
- Confirm the Country/Region exactly matches the tenant region you selected during sign‑up.
- Use the cardholder's name exactly as your bank has it, and include your full phone number with country code.
- Make sure the address, postal code, and characters are entered using plain ASCII.
2/ Try a clean purchase/activation attempt
To avoid cached data or geolocation mismatches:
- Open an InPrivate/Incognito browser session.
- Sign in again and avoid VPN/proxy.
- Try using a different network, such as a mobile hotspot. These steps have resolved verification failures for many users.
3/ Try a different payment method
If available, test another card - ideally one not previously used with any Microsoft tenant - or try an alternative payment option such as PayPal (if supported).
If the issue continues:
I recommend opening a support ticket directly with the Microsoft 365 Billing Team through Microsoft 365 Admin Center so they can review and reset the stuck verification on the backend. You can follow Microsoft’s official guidance: Get support for Microsoft 365 for business.
If you can't access to admin center, please contact the Microsoft Billing team via Customer service phone numbers - Microsoft Support.
Here are some tips and an example of a prompt to help you navigate the IVR more effectively:
In some countries, it is an automated conversation like:
IVR: What kind of problem are you concerned about?
You: Billing
IVR: What kind of product do you use?
You: Office 365 for business.
IVR confirmation: education or company account?
You: For companies
IVR: Are you an administrator?
You: Yes.
IVR: Do you have another administrator in your organization?
You: No.
IVR: Do you need a... Service request?
You: Yes. I need to create a ticket. Please send me direct to the Billing Team.
I hope this information helps. Please try the steps and let me know whether they resolve the issue. If the problem persists, we can work together to find a solution.
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