P1 - Single Sign On - Unable to Login to Fourth

Incident Report for Fourth

Resolved

This incident has been resolved.

Posted Jun 05, 2026 - 11:43 UTC

Monitoring

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.

Posted May 28, 2026 - 18:31 UTC

Update

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.

Posted May 28, 2026 - 17:57 UTC

Update

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.

Posted May 28, 2026 - 17:31 UTC

Investigating

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.

Posted May 28, 2026 - 16:58 UTC

This incident affected: Hosted in EMEA (Engage, Inventory (Stock R9), Ordering (Marketplace), Fourth Platform & Single Sign On) and Mobile Apps.