Dear Customer,

Please be notified regarding the forthcoming planned maintenance window detailed below:

Affected Services: On-premise FlexNet licensing

Start Date and Time: March 19 2026, 17:00 UTC

Expected Duration: 7h

Planned End Date and Time: March 20 2026, 00:00 UTC

We will have multiple short breaks in the On-premises FlexNet licensing system on Thursday, March 19th. We recommend avoiding Tekla Structures license activation and deactivation during the service break. We apologize for any inconvenience this may cause.