Dear Clients,
In accordance with the document titled “Information on the expected changes of the beneficial owner identification procedure of KELER” published on June 9, the updated version of KIDIO related to this development is now available on our website. We plan to hold a client related testing period in October 2026; participation is not mandatory but is recommended. Please indicate your intention to participate in the testing by August 30, 2026, by emailing 
. According to KELER’s schedule, the above change will take effect in the production environment on November 16, 2026.
Best regards,
KELER Zrt.