After you create your Calder account, open the email we send you and enter the 6-digit verification code on the Verify your email page.
The code goes to the address you registered with and is valid for 10 minutes. Only digits are accepted, and the box takes six of them.
If the code has expired or never arrived, wait for the countdown and choose Resend code. Complete the security check first if one appears. An invalid or expired code shows "That code is invalid or expired."
Once the code is accepted, Calder verifies your address, applies your invitation, and takes you to your getting-started steps. If your invitation is no longer valid, you are signed out and told that an invite is required.