How can I write custom properties from a multistep form for a newsletter subscription?

Hey @bitmap 

Thank you so much for reaching out for help collecting profile properties on your signup form.

It looks like you are trying to acquire profile properties through hidden fields on a Klaviyo form. Hidden fields collect information discreetly as they are attached to the submit button of your form. They typically collect properties centered around form content or its location on your site. By default, all new signups have a Source property as a hidden field. This identifies where the profile came from in the List Growth Report. However first and last name are not hidden properties that we can track and why you don’t see it on your signup form. Instead you want to add  blocks to your signup form that will collect these profile properties for you as follows:

1. Drag and drop the appropriate block into the form

   

    

2. Select the block in the template editor
3. Configure the details of the block, including the text and styling, in the left-hand sidebar
4. Select an existing profile property or create a new one
5. Add a label and value for the custom property under Property Options
6. Save the block

This should put you back on the right path to collecting your customers informations. Thanks again for being part of the Klaviyo Community!