How to limit the length of the login when registering in the Bitrix personal account?

Question

1C-Bitrix

Hello. As a matter of fact, the question arose of how to set a limit on the number of characters in the login during registration. At the moment I need a 16 character limit. How to implement this?

Answer 1

It is better not to get into the Bitrix functions.
Edit the registration form, after copying the template and already in the registration template you need to hang it on the input field
<input type="text" maxlength="16">