I've to call a form after payment successful(before order success page) for Magento 2.2.4. (User will just fill this form & we'll just save corresponding to order-id).
So I'm using "sales_order_payment_pay" event here but it didn't work.
**I also tried some other payment events which didn't work. e.g- "sales_order_payment_place_start", "sales_order_payment_place_end".
But when I tried one of other event(to check if any event triggers or not) it works** but it doesn't fullfill my requirement.
To use event I created a separate module.
So please anybody let me know, why I'm not able to use some payment events?
Instead of the event is there any better way(except success page customization) which can fulfill my need?