How to add a birthdate field in a client registration form?

Store Design

Topic summary

A user is attempting to add a custom metafield to the client registration form to capture customers’ birthdates.

Current Status:

  • The user has tried implementing this feature but is encountering issues
  • The main problem: the birthdate information is not being saved to the customer’s profile/record

Request:
Seeking guidance on how to properly configure this functionality so that the birthdate data persists in customer records.

Summarized with AI on November 23. AI used: claude-sonnet-4-5-20250929.
1

Buenos días. La idea es agregar un metacampo al formulario de registro de cientes para que el cliente pueda poner su fecha de nacimiento. ¡alguien sabe como solucionar este tema? Lo he intentado pero no consigo que lo grabe en la ficha de cliente.

Gracias!