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    51 Customerio incidents · September 2025 — official updates, affected components, duration and resolution details.

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    Some customers are currently unable to access the account Billing page in our UI

    Beginn 18. Juni 2026 um 20:06 UTC · 28m

    IssuesGeringfügiger Vorfall
    Betroffene Komponenten
    Management Interface
    1. 18. Juni 2026 um 20:06 UTCinvestigating

      We're looking into an issue where https://fly.customer.io/settings/billing/ isn't loading for some customers. We apologize for the inconvenience.

    2. 18. Juni 2026 um 20:29 UTCmonitoring

      We've identified the issue and access to the Billing page has been restored. We thank you for your patience!

    3. 18. Juni 2026 um 20:34 UTCresolved

      This incident has been resolved.

    Investigating Connectivity Issues

    Beginn 13. Juni 2026 um 21:18 UTC · 2h 42m

    OutageSchwerwiegender Vorfall
    1. 13. Juni 2026 um 21:18 UTCinvestigating

      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.

    2. 13. Juni 2026 um 22:21 UTCidentified

      The team has identified the issue and is actively working on a fix

    3. 13. Juni 2026 um 23:46 UTCmonitoring

      A fix has been implemented and the systems are recovering. We are monitoring UI for any other issue.

    4. 14. Juni 2026 um 00:00 UTCresolved

      This incident has been resolved.

    Delays in processing requests

    Beginn 10. Juni 2026 um 04:45 UTC · 32m

    IssuesGeringfügiger Vorfall
    Betroffene Komponenten
    Data ProcessingMessage Sending
    1. 10. Juni 2026 um 04:45 UTCinvestigating

      Our team is aware of an issue affecting Customer IO EU and US systems . We are looking into this and gathering more details.

    2. 10. Juni 2026 um 04:56 UTCinvestigating

      Identified the issue, still processing backlog

    3. 10. Juni 2026 um 05:15 UTCmonitoring

      5% of our customers could have experience delays up to 40minutes, but going forward everything is working correctly

    4. 10. Juni 2026 um 05:17 UTCresolved

      This incident has been resolved.

    AI Agent and LLM Campaign Actions Disruption

    Beginn 9. Juni 2026 um 15:49 UTC · 1h 7m

    Pending
    1. 9. Juni 2026 um 15:49 UTCinvestigating

      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!

    2. 9. Juni 2026 um 16:33 UTCidentified

      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.

    3. 9. Juni 2026 um 16:47 UTCmonitoring

      A fix has been implemented and we are monitoring the results.

    4. 9. Juni 2026 um 16:56 UTCresolved

      This incident has been resolved. Thank you for your patience!

    Some customers seeing delays setting up Pipelines in new EU workspaces

    Beginn 5. Juni 2026 um 12:30 UTC · 1h 4m

    IssuesGeringfügiger Vorfall
    Betroffene Komponenten
    Management Interface
    1. 5. Juni 2026 um 12:57 UTCinvestigating

      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.

    2. 5. Juni 2026 um 13:12 UTCmonitoring

      A fix has been implemented and we are monitoring the results.

    3. 5. Juni 2026 um 13:35 UTCresolved

      This incident has been resolved.

    Salesforce and Hubspot syncs might be delayed for some EU customers

    Beginn 4. Juni 2026 um 23:50 UTC · 1h 25m

    IssuesGeringfügiger Vorfall
    Betroffene Komponenten
    Data Processing
    1. 4. Juni 2026 um 23:50 UTCidentified

      We've identified an issue affecting some EU customers' Salesforce and Hubspot syncs. Our team is working on a fix.

    2. 5. Juni 2026 um 00:44 UTCmonitoring

      We have rolled out a fix and we're monitoring closely.

    3. 5. Juni 2026 um 01:15 UTCresolved

      We confirm the incident is resolved. Thank you for your patience!

    Customer.io UI is currently inaccessible

    Beginn 4. Juni 2026 um 13:34 UTC · 8m

    IssuesGeringfügiger Vorfall
    Betroffene Komponenten
    Management Interface
    1. 4. Juni 2026 um 13:34 UTCinvestigating

      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.

    2. 4. Juni 2026 um 13:39 UTCmonitoring

      We've got a fix in place, and the UI is available once again. Thank you for your patience!

    3. 4. Juni 2026 um 13:42 UTCresolved

      This incident has been resolved.

    UI inaccessible

    Beginn 2. Juni 2026 um 21:18 UTC · 1h 39m

    OutageSchwerwiegender Vorfall
    Betroffene Komponenten
    Management Interface
    1. 2. Juni 2026 um 21:18 UTCinvestigating

      Our team is aware of an issue affecting access to the Customer.io UI and we are working to identify the cause.

    2. 2. Juni 2026 um 21:33 UTCmonitoring

      A fix has been deployed for the issue affecting access to the UI. We are monitoring performance and customer feedback.

    3. 2. Juni 2026 um 22:25 UTCidentified

      Our team has identified additional UI-related issues affecting some customers. We are working on a fix now.

    4. 2. Juni 2026 um 22:43 UTCmonitoring

      We have rolled out a fix for the remaining UI-related issues and are watching system behavior closely.

    5. 2. Juni 2026 um 22:57 UTCresolved

      The issues affecting the UI have been resolved, and the system is functioning normally.

    Reverse ETL Syncs not being run for some EU Customers

    Beginn 1. Juni 2026 um 11:40 UTC · 31m

    IssuesGeringfügiger Vorfall
    Betroffene Komponenten
    Data Processing
    1. 1. Juni 2026 um 11:40 UTCinvestigating

      We are currently investigating an issue affecting Reverse ETL syncs for some EU customers.

    2. 1. Juni 2026 um 11:44 UTCmonitoring

      A fix has been deployed for the issue affecting Reverse ETL syncs in EU workspaces. We are continuing to monitor this.

    3. 1. Juni 2026 um 12:11 UTCresolved

      We have confirmed that the incident has been resolved and all Reverse ETL syncs are running as expected. Thanks for your patience!

    Some customers are seeing broadcast delivery delays (emails, push notifications, and webhooks)

    Beginn 29. Mai 2026 um 16:26 UTC · 42m

    IssuesGeringfügiger Vorfall
    Betroffene Komponenten
    Message Sending
    1. 29. Mai 2026 um 16:26 UTCinvestigating

      Our engineers are aware of an issue where messages may be showing as "queued". We're investigating this now. Thank you for your patience!

    2. 29. Mai 2026 um 16:40 UTCidentified

      We've identified the issue and are working towards a resolution now.

    3. 29. Mai 2026 um 16:51 UTCmonitoring

      We have a resolution in place and are monitoring message throughput recovery now. Thank you for your patience!

    4. 29. Mai 2026 um 17:08 UTCresolved

      We have confirmed that this incident is now resolved. Thank you very much for your patience!

    Customers in the EU region may experience delays in message sending

    Beginn 25. Mai 2026 um 15:27 UTC · 43m

    IssuesGeringfügiger Vorfall
    Betroffene Komponenten
    Message Sending
    1. 25. Mai 2026 um 15:27 UTCinvestigating

      We are currently investigating this issue.

    2. 25. Mai 2026 um 15:58 UTCmonitoring

      A fix has been implemented and we are monitoring the results.

    3. 25. Mai 2026 um 16:10 UTCresolved

      This incident has been resolved.

    Some customers in our EU region may experience errors and delays

    Beginn 6. Mai 2026 um 16:00 UTC · 26m

    IssuesGeringfügiger Vorfall
    Betroffene Komponenten
    Management InterfaceData CollectionData Processing
    1. 6. Mai 2026 um 16:00 UTCidentified

      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!

    2. 6. Mai 2026 um 16:14 UTCmonitoring

      The UI is available as expected, and we are monitoring before marking this as fully resolved. Thank you again for your patience!

    3. 6. Mai 2026 um 16:26 UTCresolved

      This incident has been resolved.

    Delay in Salesforce & Hubspot data-in integrations

    Beginn 20. April 2026 um 19:52 UTC · 14m

    OutageSchwerwiegender Vorfall
    Betroffene Komponenten
    Data Processing
    1. 20. April 2026 um 19:52 UTCinvestigating

      We are currently investigating an issue impacting Salesforce and Hubspot data-in integrations in the US region.

    2. 20. April 2026 um 20:04 UTCmonitoring

      We have identified the issue, released a fix, and are currently monitoring integrations.

    3. 20. April 2026 um 20:06 UTCresolved

      This incident has been resolved.

    Customer.io UI is currently unavailable for some customers

    Beginn 20. April 2026 um 16:45 UTC · 10m

    IssuesGeringfügiger Vorfall
    Betroffene Komponenten
    Management Interface
    1. 20. April 2026 um 16:55 UTCinvestigating

      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!

    2. 20. April 2026 um 17:03 UTCmonitoring

      The UI is available as expected, and we are monitoring before marking this as fully resolved. Thank you again for your patience!

    3. 20. April 2026 um 17:35 UTCresolved

      This incident is now resolved. Thank you for your patience and understanding!

    Some customers in our EU region may experience errors and delays

    Beginn 17. April 2026 um 20:07 UTC · 9m

    Pending
    Betroffene Komponenten
    Management InterfaceData CollectionData Processing
    1. 17. April 2026 um 20:07 UTCinvestigating

      We are currently investigating this issue.

    2. 17. April 2026 um 20:08 UTCidentified

      The issue has been identified and a fix is being implemented.

    3. 17. April 2026 um 20:13 UTCmonitoring

      A fix has been implemented and we are monitoring the results.

    4. 17. April 2026 um 20:16 UTCresolved

      This incident has been resolved.

    Customer.io UI currently experiencing issues

    Beginn 16. April 2026 um 21:17 UTC · 12m

    Pending
    1. 16. April 2026 um 21:17 UTCresolved

      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!

    Unable to create event-driven campaigns

    Beginn 15. April 2026 um 20:30 UTC · 0m

    Pending
    1. 15. April 2026 um 21:06 UTCresolved

      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.

    Integration Destinations UI Disruption

    Beginn 13. April 2026 um 18:26 UTC · 5m

    OutageSchwerwiegender Vorfall
    Betroffene Komponenten
    Management Interface
    1. 13. April 2026 um 18:26 UTCinvestigating

      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.

    2. 13. April 2026 um 18:28 UTCidentified

      The issue has been identified in the UI and a fix is being deployed.

    3. 13. April 2026 um 18:31 UTCresolved

      A fix has been deployed and the system's functionality is fully restored.

    EU Region API Processing Delays

    Beginn 7. April 2026 um 16:46 UTC · 4h 7m

    IssuesGeringfügiger Vorfall
    Betroffene Komponenten
    Data Processing
    1. 7. April 2026 um 16:46 UTCinvestigating

      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!

    2. 7. April 2026 um 17:26 UTCinvestigating

      We are continuing to investigate this and will be back again as soon as we have an update. Thank you for your continued patience!

    3. 7. April 2026 um 20:53 UTCresolved

      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 our EU region may experience errors and delays

    Beginn 26. März 2026 um 18:30 UTC · 0m

    Pending
    1. 26. März 2026 um 19:04 UTCresolved

      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.