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"K2TSTS10002: An error occurred while processing a WS-Federation sign-in response" error when using Azure Active Directory credentials

This article was created in response to a support issue logged with K2. The content may include typographical errors and may be revised at any time without notice. This article is not considered official documentation for K2 software and is provided "as is" with no warranties.


A single user receives the following error when accessing K2 SmartForms following a successful logon using their Azure Active Directory account:

K2TSTS10002: An error occurred while processing a WS-Federation sign-in response

This only occurs in Chrome. Internet Explorer and Edge is working correctly.


When accessing a K2 SmartForms URL, the page does not display. In the Chrome URL bar, an icon is displayed showing a tooltip: "This page was prevented from setting cookies."

Troubleshooting Steps

The issue is caused when the Chrome browser is set to block Cookies. Verify Chrome's Cookie related setting in Settings > (Expand Advanced section) Site Settings > Cookies and site data.

Ensure "Allow sites to save and read cookie data (recommended)" is enabled and "Block third-party cookies" is disabled.