51 Customerio incidents · september 2025 — official updates, affected components, duration and resolution details.
We're looking into an issue where https://fly.customer.io/settings/billing/ isn't loading for some customers. We apologize for the inconvenience.
We've identified the issue and access to the Billing page has been restored. We thank you for your patience!
This incident has been resolved.
We are aware of an issue affecting access to our web application. Customers may encounter ERR_CONNECTION_REFUSED when attempting to access the UI. At this time, we are not aware of any impact beyond UI accessibility. Message processing and delivery continue to operate normally. Our team is actively investigating the issue and working to restore full service as quickly as possible. We will provide updates as more information becomes available.
The team has identified the issue and is actively working on a fix
A fix has been implemented and the systems are recovering. We are monitoring UI for any other issue.
This incident has been resolved.
Our team is aware of an issue affecting Customer IO EU and US systems . We are looking into this and gathering more details.
Identified the issue, still processing backlog
5% of our customers could have experience delays up to 40minutes, but going forward everything is working correctly
This incident has been resolved.
We are currently investigating an issue affecting our AI Agent and LLM actions within campaigns. Some customers may be experiencing disruption or delays with these features. We will provide an update as soon as we have more information. Thank you for your patience!
Our engineers have identified the issue that is causing disruption. We are working on a resolution and will provide an update shortly. Thank you for your patience.
A fix has been implemented and we are monitoring the results.
This incident has been resolved. Thank you for your patience!
We are currently investigating a delay affecting the setup of Pipelines in newly created workspaces in our EU region. Customers creating new workspaces may experience longer than expected wait times before Pipelines become available. Our team is actively working on this and we will post another update shortly. Thank you for your patience.
A fix has been implemented and we are monitoring the results.
This incident has been resolved.
We've identified an issue affecting some EU customers' Salesforce and Hubspot syncs. Our team is working on a fix.
We have rolled out a fix and we're monitoring closely.
We confirm the incident is resolved. Thank you for your patience!
Our team is aware of this issue and are digging into it right now. We apologize for the inconvenience and will be back with an update as soon as possible.
We've got a fix in place, and the UI is available once again. Thank you for your patience!
This incident has been resolved.
Our team is aware of an issue affecting access to the Customer.io UI and we are working to identify the cause.
A fix has been deployed for the issue affecting access to the UI. We are monitoring performance and customer feedback.
Our team has identified additional UI-related issues affecting some customers. We are working on a fix now.
We have rolled out a fix for the remaining UI-related issues and are watching system behavior closely.
The issues affecting the UI have been resolved, and the system is functioning normally.
We are currently investigating an issue affecting Reverse ETL syncs for some EU customers.
A fix has been deployed for the issue affecting Reverse ETL syncs in EU workspaces. We are continuing to monitor this.
We have confirmed that the incident has been resolved and all Reverse ETL syncs are running as expected. Thanks for your patience!
Our engineers are aware of an issue where messages may be showing as "queued". We're investigating this now. Thank you for your patience!
We've identified the issue and are working towards a resolution now.
We have a resolution in place and are monitoring message throughput recovery now. Thank you for your patience!
We have confirmed that this incident is now resolved. Thank you very much for your patience!
We are currently investigating this issue.
A fix has been implemented and we are monitoring the results.
This incident has been resolved.
Our engineers are looking into an issue where some workspaces aren't loading as expected. Processing and deliveries may be delayed. We're working to get this resolved and will post an update soon. Thank you for your patience!
The UI is available as expected, and we are monitoring before marking this as fully resolved. Thank you again for your patience!
This incident has been resolved.
We are currently investigating an issue impacting Salesforce and Hubspot data-in integrations in the US region.
We have identified the issue, released a fix, and are currently monitoring integrations.
This incident has been resolved.
Our engineers are looking into an issue where some workspaces aren't loading as expected. We're working to get this resolved and will post an update soon. Thank you for your patience!
The UI is available as expected, and we are monitoring before marking this as fully resolved. Thank you again for your patience!
This incident is now resolved. Thank you for your patience and understanding!
We are currently investigating this issue.
The issue has been identified and a fix is being implemented.
A fix has been implemented and we are monitoring the results.
This incident has been resolved.
Customers who are currently working in our UI are likely to have seen elevated errors or loading. Our engineers are aware, investigated, and have resolved this issue. Thank you for your patience and understanding!
We've identified an issue that was preventing the workflow builder from adding Event campaign triggers. This did not affect processing or deliveries for existing campaigns, only the workflow UI experience was impacted. This incident has already been resolved.
Our team is aware of an issue affecting Integrations with destinations in EU/US. We are looking into this and gathering more details. Data import and export is still working, only the UI is effected.
The issue has been identified in the UI and a fix is being deployed.
A fix has been deployed and the system's functionality is fully restored.
Some customers in our EU region may be experiencing delays with processing data sent in through our API. Our team is investigating the cause and will provide an update soon. Thank you for your patience!
We are continuing to investigate this and will be back again as soon as we have an update. Thank you for your continued patience!
Our engineers have identified the issue and have deployed a resolution. Processing delays are clearing up. Thank you very much for your patience!
Some customers in the EU region may have seen errors in the UI and delays of up to 10 minutes in deliveries and data processing.