Contact us about product form

Hi,

There is no easy way to use the telephone field from the default billing or shipping address of the user there.
However, you can create a custom field of the table "contact" via the menu Display>Custom fields to ask a phone number to the user when filling the form.

What do you mean ?
You want to add a custom field to the waitlist form ?
There is no such mechanism in place there.
You could directly add the input field in the view file:

However, you also need to create a new column in the hikashop_waitlist table in your database, and develop a small Joomla plugin of the group "hikashop" implementing the onBeforeWaitlistCreate(&$element, &$do) event to set $element->xxx (where xxx is the name of the column in the table) with the value fromThen, in the waitlist email in System>Emails, you can use $data->xxx to retrieve the information from the database in order to add the value to the notification email to the customer. For the notification to the admin, you can use:the value from