Passing form submission parameters from one page to another page

Hi all,

I have a very urgent questions regarding the usage of Webflow forms:

Having a Webflow form on our microsite, we want to keep the data entered (name and email) hidden on the following site (thank you page) in order to use them to enable a newsletter signup by clicking one button. Hence, how to save webflow form input for the next site of the cutomer journey (also being a webflow page).

Thank you very much in advance!

Kind regards,

Unfortunately, I do not find something similar. Could you help? It would be pretty urgent to know. Thanks in advance.