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Microsoft Customer Agreement vs. Microsoft Online Service Agreement: Key Differences
Question details
The user wants to understand the differences between the current Microsoft Customer Agreement and the legacy Microsoft Online Service Agreement, as well as the transition process.
- Product
- Microsoft Cloud Services
- Device & OS
- not provided
- Scenario
- Evaluating or executing a transition from a legacy Microsoft cloud billing agreement to the current commercial agreement.
- Observed behavior
- Customers need to know the terms governing their cloud services and how to properly migrate their billing ownership and subscriptions.
Gather your current Microsoft 365 or Azure subscription details and ensure you have global admin access to the Microsoft 365 Admin Center before initiating any billing transfer requests.
Evaluate MCA vs. MOSA and Transition Your Account
Learn the distinction between the two agreements and how to request a transition through Microsoft Support.
The Microsoft Customer Agreement (MCA) is the current consolidated commercial cloud agreement for customers buying directly from Microsoft. The Microsoft Online Service Agreement (MOSA) is a legacy agreement for older arrangements.
Microsoft strongly encourages legacy customers to transition to the MCA to streamline commercial terms and conditions.
Log in to the Microsoft 365 Admin Center or Azure portal to check your active billing accounts and determine if you are currently operating under MOSA.
Because transferring accounts involves private billing and subscription data, submit a support request through the Microsoft 365 admin center for an account-specific evaluation.
If you are transitioning Azure services, request a billing ownership transfer within the portal, review the transition proposal, approve it, and monitor its status.
Coordinate with your Microsoft account manager to finalize the proposal, complete the purchase, and correctly configure your new MCA billing account.
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Frequently Asked Questions
What is the Microsoft Customer Agreement (MCA)?
The MCA is Microsoft's current consolidated commercial cloud agreement that applies to customers who purchase services directly from Microsoft. It replaces older, fragmented licensing agreements.
What is the Microsoft Online Service Agreement (MOSA)?
MOSA is a legacy agreement used for older customer arrangements. Microsoft is actively encouraging customers to transition from this legacy contract to the newer MCA.
How do I transition my billing from MOSA to MCA?
Because transitions involve private administrator and billing information, you should contact Microsoft Support via the Microsoft 365 Admin Center or your dedicated account manager for an account-specific evaluation.
Does the transition process differ between Azure and Microsoft 365?
Yes. Transferring Azure typically involves requesting billing ownership directly in the portal, while Microsoft 365 transfers may require different manual steps or direct assistance from an account manager.
