Hello,
To submit the form with AJAX in the second page, to allow continue entering the rest of fields, makes necessary customize your copy of the plugin, because, if the third page includes required fields, captcha, or if your form is associated to PayPal, to submit the form all required fields must be entered, the captcha must be valid, and the user can be redirected to PayPal.
Another solution, that is not exactly the solution requested, but does not requiere a customization:
1. Enter as the URL of the thank you page in the form’s settings, the same URL to the webpage where the form is.
2. Insert in the same page the shortcode to include the form’s summary, with the code to populate the fields by default. More information in the following link:
http://cff.dwbooster.com/documentation#populate-form
Best regards.
The third page is a summary with sort results and links to buy my products.
Hello,
In this case, my recommendation is to display the summary of data collected by the form, and the links to the products, with the shortcode for the summary directly in the webpage, and not as part to the form, and then insert both shortcodes in the same page, to use the code in the plugin’s documentation to populate the form by default, allowing the users modify the values.
Best regards.