Minor incident

Intellistack: Formstack Sign API Authentication Issues

Sep 29, 2026, 14:49 UTC

started

22:28 UTC

resolved September 30, 2026

31 h 40 min

duration

Affected: API, Documents

Current status of Intellistack: Operational — live Intellistack status

Timeline

Sep 29, 2026, 14:49 UTC
investigating
We are investigating reports that some Formstack Sign customers are unable to send documents through the API. Affected requests may return a “Request requires authentication” error despite successfully generating an access token. Some customers may also see a null API secret within their account. Our team is actively investigating and will provide additional updates as more information becomes available.
Sep 29, 2026, 15:58 UTC
identified
The issue has been identified and a fix is being implemented.
Sep 29, 2026, 19:24 UTC
monitoring
A fix has been implemented and we are monitoring the results.
Sep 30, 2026, 22:28 UTC
resolved
All known issues with the Sign API and our authentication migration are now resolved and complete.

Updates as published by Intellistack (original).

This was part of a wider event: 18 services reported incidents within the hour.

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Thomson Reuters Legal 15:26 UTC · CoCounsel New Experience Degraded Performance
SU ITS 15:16 UTC · Qualtrics Service Disruption
Pitt Digital Systems 15:09 UTC · Vendor Issue Affecting Claude for Education Logins
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uchicago 14:56 UTC · Claude Partial Outage
Cielo 14:53 UTC · Indisponibilidade parcial nos fluxos de solicitação (maquininhas) e produtos (serviços) de logística através do site.
Nextech 14:53 UTC · Performance Issue
SU ITS 14:50 UTC · Claude.ai outage
Genetec Cloud Products 14:45 UTC · Potential issue affecting Genetec Cloud Products / Security Center SaaS → Investigation West Europe
Daxko 14:45 UTC · Engage Pro - Slow Loading for Pages, Reports, and Guests