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Sudden Increase in 401 Errors When Using Jira API (No Changes Made)

Vasileios Kokotakis
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November 4, 2025

Hello,
We're experiencing a strange issue with our app that connects to Atlassian Jira via the REST API.
The app uses an Atlassian account that has all the necessary permissions - the user is an organization admin. Everything worked fine until about a month ago, but lately we've started seeing more and more 401 (Unauthorized) errors.
What's strange is that nothing has changed on our side:
No changes in app code or authentication logic.
No changes in Jira account permissions or organization settings.
The same user and token are being used.
Even more confusing - the errors vary day by day. For example:
On October 30, the app ran without any errors.
On October 31, the app produced around 1000 401 errors.
No configuration or deployment happened between those dates.
Could this be token-related or some intermittent authentication issue on Atlassian's side?
Has anything changed recently in how Jira Cloud handles API tokens or session validation?
Any insights or similar experiences would be very helpful.
Thank you!

1 answer

0 votes
John Funk
Community Champion
November 4, 2025

Hi Vasileios,

You should probably go ahead and submit a support ticket to Atlassian for help with this. 

https://support.atlassian.com/contact/#/

Best of luck!

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