- Level
- confirmed
- Worst impact
- Degraded
- Components
- Data Processing, Message Sending
- Regions
- us
- Down Index
- 23of 100
What to do
Check whether you use Customer.io Data Processing, Message Sending in us. Check your stack
Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.Confirm your retries, queues and scheduled jobs caught up after the 1h 23m it lasted.
Anything that failed between 2026-07-20 21:35 UTC and 2026-07-20 22:58 UTC may need a replay.Subscribe to Customer.io's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=customerio works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Updates from Customer.io 4
- investigating
Our engineers are currently looking into an issue that is causing data processing and message-sending delays for a small subset of customers in the US region. We apologise for any inconvenience caused.
provider
- identified
The issue has been identified and we're working on a fix. Thank you for your patience.
provider
- monitoring
A fix has been deployed, and we are processing any delayed backlogs. We are continuing to monitor the results.
provider
- resolved
This incident has been resolved and all backlogs have been processed.
provider
Reports count in aggregate; nothing about you is shown.
Corrections
None so far.
Something wrong on this page? Report an error or send us a note. Every fix is listed here.
Questions about DWN-d85ff0d9fd
Is Customer.io still down?
No, this incident was resolved 2026-07-20 22:58 UTC. For Customer.io's live state, see https://down.guide/customerio.
How long did it last?
1h 23m, from 2026-07-20 21:35 UTC to 2026-07-20 22:58 UTC, by the times Customer.io posted.
What was affected?
Customer.io named Data Processing, Message Sending in us.
What caused it?
Customer.io hasn't published a root cause. If it does, it shows here.
Where does this come from?
Customer.io's official status page, https://status.customerio.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.