Here's a clear breakdown of how customer accounts work and what to check:
How customers create/access an account
Current (new) customer accounts, there's no traditional "register" page — customers don't set a password. Instead, they:
- Click the account/sign-in link in your store header (the little person on the right top)
- Enter their email address
- Receive a 6-digit one-time code to their email
- Enter the code → they're in (account is created automatically if they don't have one)
The sign-in and registration are the same step.