Wednesday March 3, 2021

Issue summary:
On March 3, 2021 from around 9:25 a.m. to 12:46 p.m. PST, some customers experienced issues using Workflow Builder.

Congestion in some areas of the Workflow Builder infrastructure resulted in this feature not working as expected. Customers may have encountered error messages within Slack, such as when using a workflow started by a channel action, as well as silent failures, such as scheduled workflows that failed to run as expected.

We removed this congestion from the affected areas of the infrastructure, and Workflow Builder was working once again. This step was a temporary remediation, and we’ll work to resolve the root cause of this issue.

Note: We’ve updated this summary with what the congestion resulted in as well as our remediation steps. We’ve also added some specific examples of the trouble customers may have encountered.

7:13 PM PST

Workflow Builder should now be working for all users.

Thanks again for your patience and understanding while we fixed this issue. We'll be posting a summary with more details as soon as possible.

1:27 PM PST

We don't have any additional news to share at the moment. Thank you for your patience while we sort this out.

12:55 PM PST

Our team is working to get to the bottom of this issue as soon as possible. We'll continue posting updates every 30 minutes until this incident is downgraded.

12:25 PM PST

We're still investigating this issue, and we'll keep you posted as soon as we have an update.

11:55 AM PST

No additional news to share just yet, but we're working as quickly as possible to identify and fix the issues with Workflow Builder. We appreciate your continued patience.

11:25 AM PST

There are no changes to report as of yet. We’re continuing to dig in on our side. We’ll continue to share updates every 30 minutes until the incident has been downgraded.

10:55 AM PST

We’re still investigating the issues with Workflow Builder, but we don’t have additional information just yet. We’ll be back in 30 minutes with another update. Thank you for bearing with us.

10:22 AM PST

Customers may be experiencing issues using Workflow Builder within Slack. We apologize for the disruption. We're investigating and working to resolve this as fast as we can.

9:55 AM PST