Duration: 7 hours and 57 minutes

Affected Components: MQTT API Services

Oct 6, 06:00:04 GMT+0
Investigating - We observed a slow response time on MQTT for Cumulocity platform on the EMEA environment. We are investigating the root cause and will inform you as soon as we have further information. We apologize for the inconvenience caused. .

Oct 6, 06:26:37 GMT+0
Resolved - This incident has been resolved..

Oct 6, 10:24:43 GMT+0
Investigating - The performance issues and instability reappeared. We're investigating the root cause..

Oct 6, 13:57:25 GMT+0
Resolved - We implemented a temporary fix, and the platform has stabilized. We will continue working on resolving the root cause in the background. We apologize for the inconvenience..

Duration: 1 hour and 39 minutes

Affected Components: REST API Services, MQTT API Services

Oct 1, 11:28:04 GMT+0
Investigating - We observed an issue within the entire Cumulocity platform on the EMEA environment. We are investigating the root cause and will inform you as soon as we have further information. We apologize for the inconvenience caused..

Oct 1, 12:46:35 GMT+0
Monitoring - We saw some slow query response times. Especially for MQTT connections. The operation went back to normal. We are monitoring the situation..

Oct 1, 13:06:42 GMT+0
Resolved - This incident has been resolved..

Duration: 1 hour

Affected Components: REST API Services, MQTT API Services

Sep 8, 08:53:55 GMT+0
Identified - We would like to inform you of the emergency maintenance of the Cumulocity DataHub (CDH) module on the US environment. Maintenance will occur 8 Sept 2026 9:00 UTC. Cumulocity DataHub Microservices may be impacted and restarted. Users may experience Cumulocity DataHub unavailability or interruptions during the restart procedure. Some offloadings may fail, but they will be retried next time and will pick up remaining data. Custom Dremio jobs unfortunately need to be rerun by the users. We apologize for the inconvenience caused and assure you that we shall keep any such interruptions to a minimum. Please make sure that all your relevant users of the Cumulocity IoT Platform are subscribed to our update services and are aware of the maintenance. If you have any questions or concerns, please do not hesitate to contact us..

Sep 8, 09:00:01 GMT+0
Identified - Maintenance is now in progress.

Sep 8, 10:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 1 hour

Affected Components: REST API Services, MQTT API Services

Sep 8, 08:52:09 GMT+0
Identified - We would like to inform you of the emergency maintenance of the Cumulocity DataHub (CDH) module on the EMEA environment. Maintenance will occur 8 Sept 2026 9:00 UTC. Cumulocity DataHub Microservices may be impacted and restarted. Users may experience Cumulocity DataHub unavailability or interruptions during the restart procedure. Some offloadings may fail, but they will be retried next time and will pick up remaining data. Custom Dremio jobs unfortunately need to be rerun by the users. We apologize for the inconvenience caused and assure you that we shall keep any such interruptions to a minimum. Please make sure that all your relevant users of the Cumulocity IoT Platform are subscribed to our update services and are aware of the maintenance. If you have any questions or concerns, please do not hesitate to contact us..

Sep 8, 09:00:01 GMT+0
Identified - Maintenance is now in progress.

Sep 8, 10:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 8 days, 21 hours and 56 minutes

Affected Components: MQTT API Services, REST API Services, LWM2M API Services

Aug 31, 08:11:00 GMT+0
Investigating - We observed an issue within the entire Cumulocity platform on the CUMULOCITY.COM environment. We are investigating the root cause and will inform you as soon as we have further information. We apologize for the inconvenience caused..

Aug 31, 08:13:22 GMT+0
Monitoring - We implemented a fix and are currently monitoring the result..

Sep 9, 06:07:00 GMT+0
Resolved - This incident has been resolved..

Duration: 2 hours and 30 minutes

Affected Components: REST API Services, MQTT API Services, LWM2M API Services

Aug 20, 12:00:32 GMT+0
Identified - We would like to inform you of emergency maintenance on the CUMULOCITY.COM environment. No service interruptions are expected. Cumulocity will generally remain responsive and within the limits of the service-level agreements. MAINTENANCE IMPACT: The Cumulocity Core module will undergo a rolling restart when necessary, ensuring the module remains responsive during the process. The upgrade will occur in the background and is expected to have minimal or no SLA relevant impact on the Cumulocity Platform, with no anticipated platform unavailability or interruptions. Microservices however, including the Advanced Streaming Analytics module, will need to be restarted, resulting in temporary unavailability during the restart procedure when necessary..

Aug 20, 12:30:01 GMT+0
Identified - Maintenance is now in progress.

Aug 20, 15:00:00 GMT+0
Completed - Maintenance has completed successfully.

Aug 20, 13:56:36 GMT+0
Identified - The maintenance is proceeding well; however, we need to extend the window by 30 minutes due to technical difficulties we faced at the beginning. We apologize for the inconvenience..

Duration: 1 hour

Affected Components: REST API Services, MQTT API Services

Aug 17, 09:50:12 GMT+0
Identified - To resolve issues that some customers face during offloading, we are forced to perform an emergency maintenance of the Cumulocity DataHub (CDH) module on the APJ environment. Cumulocity DataHub Microservices may be impacted and restarted. Users may experience Cumulocity DataHub unavailability or interruptions during the restart procedure. Some offloadings may fail, but they will be retried next time and will pick up remaining data. Custom Dremio jobs unfortunately need to be rerun by the users. We apologize for the inconvenience caused and assure you that we shall keep any such interruptions to a minimum. Please make sure that all your relevant users of the Cumulocity IoT Platform are subscribed to our update services and are aware of the maintenance. If you have any questions or concerns, please do not hesitate to contact us..

Aug 17, 10:00:01 GMT+0
Identified - Maintenance is now in progress.

Aug 17, 11:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 2 hours

Affected Components: REST API Services, MQTT API Services

Aug 12, 03:50:21 GMT+0
Identified - We would like to inform you of emergency database maintenance on the EU-LATEST environment. No service interruptions are expected. Cumulocity will generally remain responsive and within the limits of the service-level agreements. MAINTENANCE IMPACT: The Cumulocity Database component will undergo a rolling restart when necessary, ensuring the component remains responsive during the process. The maintenance will occur in the background and is expected to have minimal or no SLA relevant impact on the Cumulocity Platform, with no anticipated platform unavailability or interruptions. .

Aug 12, 04:15:01 GMT+0
Identified - Maintenance is now in progress.

Aug 12, 06:15:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 4 hours

Affected Components: REST API Services, MQTT API Services, LWM2M API Services

Jul 13, 13:42:16 GMT+0
Identified - We will be performing scheduled maintenance on the [**Cumulocity**.com](http://Cumulocity.com) environment. This maintenance includes a database migration. The maintenance is scheduled for July, 29th 10.00-14.00 CEST. **No outage is expected.** During the maintenance, you may experience brief interruptions to write operations lasting only a few seconds as database components are transitioned. Additionally, application services will be restarted in a rolling fashion, which may cause short intermittent hiccups. The expected maintenance window is approximately 3-4 hours. No action is required on your end. We will post updates here as the maintenance progresses. Thank you for your patience..

Jul 29, 08:00:01 GMT+0
Identified - Maintenance is now in progress.

Jul 29, 12:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 4 hours

Affected Components: REST API Services, MQTT API Services

Jul 13, 13:45:54 GMT+0
Identified - We will be performing scheduled maintenance on the **Cumulocity US** environment. This maintenance includes a database migration. The maintenance is scheduled for July, 28th 17.00-21.00 CEST. **No outage is expected.** During the maintenance, you may experience brief interruptions to write operations lasting only a few seconds as database components are transitioned. Additionally, application services will be restarted in a rolling fashion, which may cause short intermittent hiccups. The expected maintenance window is approximately 3-4 hours. No action is required on your end. We will post updates here as the maintenance progresses. Thank you for your patience..

Jul 28, 15:00:01 GMT+0
Identified - Maintenance is now in progress.

Jul 28, 19:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 1 hour and 24 minutes

Affected Components: REST API Services, MQTT API Services

Jul 13, 13:25:43 GMT+0
Identified - We will be performing scheduled maintenance on the **Cumulocity EMEA** environment. This maintenance includes a database migration. The maintenance is scheduled for July, 21st 10.00-14.00 CEST. **No outage is expected.** During the maintenance, you may experience brief interruptions to write operations lasting only a few seconds as database components are transitioned. Additionally, application services will be restarted in a rolling fashion, which may cause short intermittent hiccups. The expected maintenance window is approximately 3-4 hours. No action is required on your end. We will post updates here as the maintenance progresses. Thank you for your patience..

Jul 21, 08:00:01 GMT+0
Identified - Maintenance is now in progress.

Jul 21, 09:24:18 GMT+0
Completed - Maintenance has completed successfully..

Duration: 4 hours

Affected Components: REST API Services, MQTT API Services

Jul 13, 13:01:23 GMT+0
Identified - We will be performing scheduled maintenance on the **Cumulocity APJ** environment. This maintenance includes a database migration. The maintenance is scheduled for July, 21st 03.00-07.00 CEST. **No outage is expected.** During the maintenance, you may experience brief interruptions to write operations lasting only a few seconds as database components are transitioned. Additionally, application services will be restarted in a rolling fashion, which may cause short intermittent hiccups. The expected maintenance window is approximately 3-4 hours. No action is required on your end. We will post updates here as the maintenance progresses. Thank you for your patience..

Jul 21, 01:00:01 GMT+0
Identified - Maintenance is now in progress.

Jul 21, 05:00:00 GMT+0
Completed - Maintenance has completed successfully.

Affected Components: REST API Services, MQTT API Services

Jul 13, 12:58:34 GMT+0
Completed - We will be performing scheduled maintenance on the **Cumulocity JP** environment. This maintenance includes a database migration. The maintenance is scheduled for July, 20th 03.00-07.00 CEST. **No outage is expected.** During the maintenance, you may experience brief interruptions to write operations lasting only a few seconds as database components are transitioned. Additionally, application services will be restarted in a rolling fashion, which may cause short intermittent hiccups. The expected maintenance window is approximately 3-4 hours. No action is required on your end. We will post updates here as the maintenance progresses. Thank you for your patience..

Duration: 4 days and 8 hours

Affected Components: MQTT API Services, REST API Services

Jul 8, 14:25:40 GMT+0
Identified - We would like to notify you about an upcoming upgrade to your Cumulocity.cn environment, scheduled from 13th July at 09:00 CEST to 17th of July at 17:00 CEST. MAINTENANCE IMPACT: The Core module will undergo a rolling restart when necessary, ensuring the module remains responsive during the process. The upgrade will occur in the background and is expected to have minimal or no SLA relevant impact on the platform, with no anticipated platform unavailability or interruptions. However, microservices, including the Advanced Streaming Analytics module, will need to be restarted, resulting in temporary unavailability during the restart procedure when necessary. If you have any questions or concerns, please do not hesitate to contact us via Cumulocity Global Support..

Jul 13, 07:00:01 GMT+0
Identified - Maintenance is now in progress.

Jul 17, 15:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 3 hours

Affected Components: REST API Services, MQTT API Services

Jun 4, 02:00:01 GMT+0
Identified - Maintenance is now in progress.

Jun 4, 05:00:00 GMT+0
Completed - Maintenance has completed successfully.

Jun 4, 02:00:00 GMT+0
Identified - We will be performing scheduled maintenance on the **cumulocity-trial-eu-central-1** environment. This maintenance includes a database migration and kernel patching. The maintenance is scheduled for June, 5th 04.00-07.00 CEST. **No outage is expected.** During the maintenance, you may experience brief interruptions to write operations lasting only a few seconds as database components are transitioned. Additionally, application services will be restarted in a rolling fashion, which may cause short intermittent hiccups. The expected maintenance window is approximately 2–3 hours. No action is required on your end. We will post updates here as the maintenance progresses. Thank you for your patience..