How to interrupt purchase process and open parental control modal

[hasanfd]

Hello Adapty,
For kids category, Apple requires a parental control modal for paywalls, like entering your birth year before starting purchase process. How can I achieve this by using registerEventHandlers?

Right after user pressed the buy button in the paywall, I wanna open my modal, and if the birth year check is okay, I wanna continue with purchase process.

I tried onPurchaseStarted, however, even if I show my modal, purchase process continues. It doesn't matter what I return from the function. I think you need to pass users the nextStep as a callableFunction, and users should able to decide if the purchase process should continue or not

Looking forward for your answers, thanks.