data in email multipage form with two different page groups

Hello, I have created a multipage form with two different page groups, but I would need to include the fields of the start page of the first page group in the email sent from the final page of the second page group. The syntax used {data:name_field} works only with fields of the same group of pages and does not include the fields of the start page of the first group. Is there a particular syntax or is it necessary to set some parameter in the actions field of the start page?

thank you and good evening

Giorgia

Hi Giorgia,

Why not use v8 ?

in v7, pages in different page groups do not share the same session data and you can not get the value of the field.

Thanks Max, I downloaded V8 from the beginning, I installed it both on Joomla 3.5 and on Joomla 4 but the site crashes and I had to uninstall it by hand.
So I tried with v7. I created the form on a Joomla 4 in a directory where a Joomla 3.5 is installed on the main domain, the server has php7.4 and I can't bring it to PHP 8, otherwise the main site doesn't work anymore. This is the url of the form https://prolocoborghetto.it/sagra_della_polenta/ (if possible obscure before publishing)
The need is to divert the user who chooses a given option to a page other than the second one, with a button that appears only under that condition. Initially I had start.page, second.page, third.page, end.page in the same group of pages, but the submit page option button didn't go directly to the third page as I need, it just crashed. So I created a second set of pages to separate the two roads. Also perhaps misled by the alert "Select the page to which the button will submit the form, should be in a different page group or your current page group should not be sequential" which is in the submit page configuration. In this way il.form works, but it doesn't collect the initial data, which I need instead.
How can I do? Is there a way to make a user who chooses a certain option go directly to the third page, and the user who doesn't choose it instead continues in the correct order?
Thank you.

Basically I need the user who flags a specific option to skip a page and go to the third, while the user who doesn't flag it continues normally in the second and more in the third. But I have to keep track of both user behaviors (collecting data on the path they will take) and different emails must be sent with respect to the two behaviors.