CSP unbilled invoice reconciliation API v1 to retire March 15, 2026
Migrate to API v2 before March 15, 2026, to avoid service disruption.
- Impacted audience
- Cloud Solution Provider (CSP) direct bill partners and distributors who use unbilled invoice reconciliation API v1 and haven't yet migrated to the new asynchronous API v2.
In September 2025, we introduced a new asynchronous API v2 for unbilled invoice reconciliation in Partner Center. This change optimizes API performance, reducing retrieval time for millions of line items from more than 15 hours with API v1 to just 15 minutes with API v2.
On March 15, 2026, API v1 will be retired and will no longer provide access to unbilled invoice line items after this date for modern commerce transactions. Migrate to API v2 before March 15, 2026, to avoid disruptions that could impact your ability to access details for unbilled invoice line items.
The new Microsoft Graph APIs are currently only available for the public/global cloud. The existing APIs continue to be available for Azure Government, Azure Germany, and Azure operated by 21Vianet.
Next steps
- Ensure your technical teams review the information in Get invoice's unbilled reconciliation line items asynchronously API v2.
- Use the AI assistant on the Billing overview page in Partner Center if you need more assistance, or you can open a support ticket.
- Register to watch the recordings of the CSP Technical Training and the Partner Community Q&A Call and learn more about the change.
- Learn more about other upcoming API changes so that your technical teams can prepare.