In all promotions that work with the login system, we've implemented a new login method. Now, users can identify themselves and log in with a personal code.

This personal code can be, for example, a customer or user ID from a platform, or the card number from a loyalty card. 

The code that the users enter to identify themselves can be validated in three different ways: 

• By a regular expression. Validate the codes against a string of text or a pattern to validate the codes.
• By a code set. Validate the codes against a list of codes you upload as a "code set".
• By the Luhn Algorithm. Validate the codes using the Luhn algorithm, which allows validating a variety of identification numbers against a formula.

You set up the new login method in the Editor > Pages > Login and registration: