Member sign-up Requirements

In order for members to sign up to my website, I built a custom sign-up form with wix codes.

It works in most cases and also has a validation code in it:

- Name & Surname can not be empty

- Email address must be e-mail format

- Password must be at least 6 characters long.

But some sign-ups match the requirements, and they are not added to the member requests and I do not get any message whatsoever.

Could you tell me, what requirements have to be met so that wix recognizes it as a member request?

Thanks a lot for your help!