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ONESOURCE API Administration - Security Certificate Renewal in AMER

Scheduled for Nov 1, 00:00 - 05:00 CST

Scheduled

ONESOURCE API Administration's Security Certificates are scheduled for their annual renewal in AMER. This maintenance also includes updates to a supporting ONESOURCE Platform backend service.

Between 12:00 AM and 12:30 AM CDT on November 1, 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 - 03:06 CDT
This scheduled maintenance affects: Platform (AMERS (onesourcetax.com), AMERS API Administration).