New Multi-region uptime checks and custom-domain status pages

Teamleader Outage History

Daily provider-status observations and published incident history for Teamleader.

Active provider notice

Teamleader has an active provider notice. See provider updates for affected services and details. Verified . Official provider source.

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97.6% of 82 verified observed days had no reported provider issue

90-Day Trend

Aug 18Nov 15

Dashed calendar markers below identify legacy observations whose source-at-observation was not recorded.

Monthly Status Summary

Month Issue-free days Days Tracked Days with issues
October 2026 96.8% 31 1
September 2026 100% 30 0

This percentage summarizes normalized provider-status observations by calendar day. It is not duration-based, component-weighted, or contractual uptime. See the methodology and limitations.

Recorded Daily Status (Last 91 Days)

Aug 17 Today
Legacy observation Operational Degraded Partial Outage Major Outage Maintenance No Data

Incident History

November 2026
Functionalities linked to Microsoft Outlook/Office 365 unavailable
major

View incident details and source

Started:

Lead Capture Booster Exchange Web Services
monitoring
Booking pages connected to an Outlook/Office 365 calendar, Office 365 calendar integrations and email tracking seem to be working again. We’re keeping an eye on the situation.
identified
Due to a major outage at Microsoft Outlook/Office 365, the following Teamleader functionalities that rely on Microsoft are currently unavailable: - Booking pages connected to an Outlook/Office 365 calendar - Office 365 calendar integrations - Email tracking for Outlook/Office 365 Booking pages and integrations linked to other providers (e.g. Google) are not affected. The issue is on Microsoft’s side, and we can’t resolve it ourselves. Once Microsoft has fixed the problem, these functionalities should work again automatically. You can follow the progress on Microsoft’s status page: https://status.cloud.microsoft/m365
identified
Due to a major outage at Microsoft Outlook/Office 365, the following Teamleader functionalities that rely on Microsoft are currently unavailable: - Booking pages connected to an Outlook/Office 365 calendar - Office 365 calendar integrations - Email tracking for Outlook/Office 365 Booking pages and integrations linked to other providers (e.g. Google) are not affected. The issue is on Microsoft’s side, and we can’t resolve it ourselves. Once Microsoft has fixed the problem, these functionalities should work again automatically. You can follow the progress on Microsoft’s status page: https://status.cloud.microsoft/m365
October 2026
Teamleader Focus is back online
critical Observed active window 23h 52m

View incident details and source

Started:

Teamleader Focus Web App Invoicecloud Dashboard Ticketcloud Marketplace website Teamleader Focus Mobile App Calendar Projectcloud Dropbox integration Companies Cloudsign Contacts Deals Lead Capture Booster Bookkeeping integrations Support Centre Projects Google Services Invoices Exchange Web Services Work orders Upstream providers Shared inbox Products API endpoints Timesheets Webhooks Insights Settings Global Search Peppol AP Focus AI Peppol SMP
monitoring
Earlier today we took Teamleader Focus offline as a precaution. The PHP foundation had announced two critical security vulnerabilities in PHP, a technology our platform runs on, and we didn't want to wait for the official fix while exposed. The official fix was released today and we have now installed it across our platform. All services are available again. Our investigation has found no evidence that these vulnerabilities were used against Teamleader. That investigation is still ongoing, and we will update this page if anything changes. Thank you for your patience. If you notice anything unusual, please contact our support team.
identified
A quick update: the official PHP security patch has been released, and our team is applying it right now. Once it’s in place and tested, we’ll bring Teamleader Focus back online. Thanks for bearing with us, we’ll let you know here as soon as Teamleader Focus is available again.
identified
Teamleader Focus is unavailable at the moment. We took it offline on purpose. Two critical vulnerabilities were made public in PHP, the programming language behind many websites and web apps worldwide, including Teamleader Focus. To stay ahead of any risk, we switched off Teamleader Focus as a preventive measure. We’re not aware of any security issues or misuse, and our team is investigating to be fully sure. When will we be back? For now, we’re aiming to make Teamleader Focus available again at 19:00 CEST. We can’t confirm yet whether that will be possible any sooner, because we first need to take the necessary steps to bring it back online safely. We’ll keep you posted on this page. Thanks for your patience, and sorry for the inconvenience.
identified
Two critical security vulnerabilities in PHP were made public on 20 October. PHP is a programming language used by a large share of web applications worldwide, including Teamleader Focus. As an extra precaution, we’ve temporarily taken Teamleader Focus offline while we apply PHP’s official security patch, and we’ll bring it back online as soon as that’s done. We currently have no indication that customer accounts or data have been affected, and we’ll keep this page updated.
identified
Two critical security vulnerabilities in PHP were made public on 20 October. PHP is a programming language used by a large share of web applications worldwide, including Teamleader Focus. As an extra precaution, we’ve temporarily taken Teamleader Focus offline while we apply PHP’s official security patch, and we’ll bring it back online as soon as that’s done. We currently have no indication that customer accounts or data have been affected, and we’ll keep this page updated.
monitoring
Two critical security vulnerabilities in PHP, a programming language used by a large share of web applications worldwide including Teamleader Focus, were made public on 20 October. Our engineering team immediately rolled out a temporary mitigation across our platform and is monitoring it closely, and we’ll apply PHP’s official patch as soon as it’s released later today. We currently have no indication that customer accounts or data have been affected, and you don’t need to do anything.

Legacy Incident Archive

2 archived records restored. These records predate source-at-observation attestation. They are shown as historical ServiceAlert records only and do not establish a provider-reported incident, resolution, duration, or current active state.

July 2026
Some deal detail pages fail to load.
major Source not attested
Last archived state: resolved
View archived record details
monitoring
A fix has been implemented and we are monitoring the results.
investigating
We are aware that some customers are experiencing an unexpected error when opening certain deal pages. The issue occurs intermittently and not on all deals. Our development team is actively investigating. We will provide an update as soon as we have more information.
June 2026
Delay in creating tasks on projects
Source not attested
Last archived state: resolved
View archived record details
monitoring
We have implemented a fix and are monitoring the results.
investigating
We are currently experiencing delays in creating tasks on projects. We're investigating the cause and will provide an update as soon as possible.
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