In order to sign in, enter your customer number in the password field and sign in. Once your account is authenticated, you are signed in to your account, and a pop up screen will appear where you can set your new password.
From now on, password will be used along with registered email address to sign in to CheckMark account instead of customer ID. Make sure you remember this password.
If you have already created your password for CheckMark account and forgot it, click here.