Hi,
for Stripe payments, the FF documentation says
QUOTE
From this tab, you can redirect users to a Stripe checkout or thank you page after submitting their form. Or, go one step further and email them an invoice following their purchase.
UNQUOTE
Link: https://formidableforms.com/stripe-payment-options-wordpress/
However, I do not find any further details on both steps, i.e. 1) how to redirect to a stripe page for payment, and 2) how to automatically email an invoice to the user after purchase.
Can anyone point me to a documentation which contains further explanation on how this can be done in FF?