Is Customer.io down?
Last checked 5m agoNo incidents right now.
Customer.io is operational right now. Last checked 5m ago; the most recent incident resolved 17h ago.
Real-time Customer.io status, recent outages, and incident history: pulled directly from Customer.io's official status page at status.customerio.com every 5 minutes. Pingoru tracks 8 Customer.io services and has captured 7 incidents in the last 90 days (99.10% uptime). Get email, Slack, Discord, or webhook alerts the moment Customer.io reports a new incident, free for 3 monitors, no credit card.
Recent outages & incidents
Past 90 days- Management Interface
Timeline · 3 updates
- investigating · Oct 27, 2026, 07:11 PM UTC
Our team is aware of an issue with reaching the workspace UI (fly.customer.io) and are actively looking into it. We appreciate your patience and will be back with an update soon.
- identified · Oct 27, 2026, 07:29 PM UTC
Our team has identified the issue. This only affected accessing the UI; data processing and message sending were not affected.
- resolved · Oct 27, 2026, 07:36 PM UTC
Thank you for your patience while we investigated; this issue is now resolved.
Latest: Thank you for your patience while we investigated; this issue is now resolved.
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- Message Sending
Timeline · 4 updates
- investigating · Sep 19, 2026, 10:50 PM UTC
We are currently investigating this issue.
- identified · Sep 19, 2026, 10:52 PM UTC
The issue has been identified and a fix is being implemented.
- monitoring · Sep 19, 2026, 11:10 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved · Sep 19, 2026, 11:17 PM UTC
This incident has been resolved.
Latest: This incident has been resolved.
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- Message Sending
Timeline · 3 updates
- investigating · Sep 04, 2026, 12:16 PM UTC
We are currently investigating reports of reduced deliverability affecting messages sent to Microsoft-hosted email addresses. Our team is actively looking into this and we will provide an update as soon as we have more information. Thank you for your patience!
- monitoring · Sep 04, 2026, 12:30 PM UTC
Starting around 08:00 UTC, Microsoft began experiencing an incident causing an increased volume of deferred/bounced emails. We are actively monitoring the situation. No other email providers are currently affected.
- resolved · Sep 04, 2026, 01:35 PM UTC
Microsoft has resolved the underlying issue, we are seeing deliveries to their services resume as normal. Earlier bounces will be retried accordingly. We appreciate your understanding and please do reach out to support if you need any further assistance.
Latest: Microsoft has resolved the underlying issue, we are seeing deliveries to their services resume as normal. Earlier bounces will be retried accordingly. We appreciate your understand…
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Timeline · 3 updates
- identified · Sep 03, 2026, 05:29 PM UTC
Our team has found an issue causing degraded experiences for interactions with the Agent within customer.io. We are working on a fix now.
- monitoring · Sep 03, 2026, 05:32 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved · Sep 03, 2026, 05:34 PM UTC
This incident has been resolved.
Latest: This incident has been resolved.
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- Management Interface
Timeline · 4 updates
- investigating · Aug 05, 2026, 05:36 PM UTC
We are currently investigating this issue.
- monitoring · Aug 05, 2026, 05:44 PM UTC
A fix has been implemented and we are monitoring the results.
- monitoring · Aug 05, 2026, 05:44 PM UTC
We are continuing to monitor for any further issues.
- resolved · Aug 05, 2026, 06:02 PM UTC
This incident has been resolved.
Latest: This incident has been resolved.
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See the full Customer.io outage history
2 more incidents in the last 90 days, plus the full multi-year archive of per-service events and update timelines.
Browse Customer.io outage history →Or sign up free to get alerts when Customer.io breaks · 10 free monitors · No credit card
Incident record
Since April 2026 · Statuspage by Atlassian · 8 components checked every 5 minutesThe longest incident in the last year, Delays with Salesforce Syncs on January 14, 2026, ran for 16 hours.
Most affected components, last 12 months
- Management Interface27
- Data Processing22
- Message Sending17
- Data Collection2
Latest incidents
- Customer.io UI is currently unavailable for some customers
Our team is aware of an issue with reaching the workspace UI (fly.customer.io) and are actively looking into it. We appreciate your patience and will be back…
- Some US customers may experience delays in message sending
We are currently investigating this issue.
- Reduced Deliverability to Microsoft-Hosted Email Addresses
We are currently investigating reports of reduced deliverability affecting messages sent to Microsoft-hosted email addresses. Our team is actively looking into…
- Started Oct 27, 2026, 07:11 PM UTC · Resolved Oct 27, 2026, 07:36 PM UTC · 24m
- Started Sep 19, 2026, 10:50 PM UTC · Resolved Sep 19, 2026, 11:17 PM UTC · 27m
- Started Sep 04, 2026, 12:16 PM UTC · Resolved Sep 04, 2026, 01:35 PM UTC · 1h 19m
- Investigating issues with the Agent ResolvedStarted Sep 03, 2026, 05:29 PM UTC · Resolved Sep 03, 2026, 05:34 PM UTC · 4m
- Customer.io UI is inaccessible ResolvedStarted Aug 05, 2026, 05:36 PM UTC · Resolved Aug 05, 2026, 06:02 PM UTC · 26m
- Started Aug 03, 2026, 07:08 AM UTC · Resolved Aug 03, 2026, 07:42 AM UTC · 33m
- Issues accessing EU accounts ResolvedStarted Jul 31, 2026, 02:24 PM UTC · Resolved Jul 31, 2026, 02:39 PM UTC · 15m