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ONESOURCE API Administration's Security Certificates are scheduled for their annual renewal in APAC. This maintenance also includes updates to a supporting ONESOURCE Platform backend service.
Between 5:00 AM and 5:30 AM CDT on October 30, you may experience temporary token validation errors when accessing certain product endpoints.
If you experience an error, please generate a new token and retry the request. If the issue persists, please try again after a few minutes.
We apologize for any inconvenience and appreciate your patience. For urgent assistance, please contact our Support team.
Posted Oct 21, 2026 - 03:05 CDT
This scheduled maintenance affects: Platform (APAC (apac1.onesourcetax.com), APAC API Administration).