Dear users,

Please be informed that a planned outage of OTE systems will take place on Tuesday, 25 November 2025. During this period, all affected environments will be completely unavailable, including all automated communication.

The unavailability will occur within the following time windows:

• Sandbox (SBX): from 14:00 to 24:00
• Production environment of the OTE trading system: from 17:00 to 23:00

Thank you for your understanding, and we apologise for any inconvenience caused.