Outage in Fourth
P1 - Single Sign On - Unable to Login to Fourth
Major
May 28, 2026 - Started about 5 hours ago
Official incident page
Official incident page
Incident Report
We are aware of a critical incident that may be affecting some of our customers using our Single Sign On platform.
When trying to login, users are met with errors. This will also impact our customer's ability to access connected apps.
This is incident is currently being investigated to determine the root cause of the issue.
Status and updates will continue here every 30 minutes until the incident has been resolved.
We apologise for this disruption to your service.
Components affected
Fourth Engage & Mobile Apps Fourth Inventory (Stock R9) Fourth Ordering (Marketplace) Fourth Platform & Single Sign OnTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
MONITORING
about 4 hours ago - at 05/28/2026 06:31PM
We are confident the issue is no longer present and that customers are now able to login successfully.
We are continuing to provide an extended period of monitoring to confirm success.
The next update will be provided upon confirmation of resolution.
We apologise for this disruption to your service.
INVESTIGATING
about 4 hours ago - at 05/28/2026 05:57PM
We are exploring multiple avenues of investigation and are seeing signs of recovery
We are continuing to work towards identifying the root cause.
Status and updates will continue here every 30 minutes until the incident has been resolved.
We apologise for this disruption to your service.
INVESTIGATING
about 5 hours ago - at 05/28/2026 05:31PM
We are continuing to investigate to determine the root cause of the issue.
Status and updates will continue here every 30 minutes until the incident has been resolved.
We apologise for this disruption to your service.
INVESTIGATING
about 5 hours ago - at 05/28/2026 04:58PM
We are aware of a critical incident that may be affecting some of our customers using our Single Sign On platform.
When trying to login, users are met with errors. This will also impact our customer's ability to access connected apps.
This is incident is currently being investigated to determine the root cause of the issue.
Status and updates will continue here every 30 minutes until the incident has been resolved.
We apologise for this disruption to your service.
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