We have identified the cause of the SMS OTP delivery failure. Both of our SMS delivery channels are unavailable at the same time: one provider is unreachable, and a certificate change on the second provider prevents secure connections from our platform. We are working on restoring at least one channel.

We are currently experiencing an issue affecting the delivery of SMS one-time passwords (OTP).
Since 00:34 UTC (01:34 CET) on November 11, 2026, our platform is unable to send SMS OTP codes. As a result, signers cannot complete electronic signatures that require SMS OTP authentication. Signature attempts return a temporary error ("Activation is held, please try again").

Other features are not affected. Our on-call team is investigating with our SMS providers. We will post an update as soon as possible.