Customer.io: Some customers are experiencing data processing and message-sending delays
Affected components: Data ProcessingMessage Sending
Timeline of updates
- 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.
- identified
The issue has been identified and we're working on a fix. Thank you for your patience.
- monitoring
A fix has been deployed, and we are processing any delayed backlogs. We are continuing to monitor the results.
- resolved
This incident has been resolved and all backlogs have been processed.
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-22 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
20e6a3714cc82839…
Impact, status and times are the vendor’s own, as last archived. View on status.customerio.com (opens in new tab).
Cite this
Status incident (vendor impact label: minor) posted by Customer.io, started 2026-07-20 22:58 UTC, resolved after 0 min, 4 update(s).
- Title
- Some customers are experiencing data processing and message-sending delays
- Vendor
- Customer.io
- Date
- URL
- https://rewindex.com/company/customer-io/incidents/9yhy8zhd25pn
Customer.io profileRecent Customer.io incidentsAll outages on July 20, 2026Customer.io in July 2026MarkdownJSON