Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Dear @Nicole Meter,
Thank you for posting your question in the Microsoft Q&A forum.
Based on your description, your CSP partner is retiring and you want to purchase Microsoft 365 directly while keeping your existing tenant and all emails/OneDrive data.
You can switch to purchasing directly from Microsoft without losing your emails or documents, as long as you remain within the same tenant.
here some suggestion you can try:
Sign in to the Microsoft 365 Admin Center https://admin.microsoft.com/#/homepage using a Global Admin account.
Purchase new licenses directly (e.g., Buy Online with credit card) under the same tenant.
- On the left sidebar, go to the Billing > Your products page.
- Select the subscription that you want to change.
- On the subscription details page, select Buy licenses.
Assign the new licenses to all users before the CSP subscription expires.
After confirming services work normally, cancel or let the CSP subscription expire.
For more detailed information: Buy or remove licenses for a Microsoft business subscription
Please understand that There is no direct conversion from CSP to Microsoft direct billing, so you must purchase a new subscription and reassign licenses. Avoid any gap in licensing to prevent service interruption.
I hope my information above meet your expectations, please feel free to reach out if you have any other questions.
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