A: Hallo Ayman,

Q: does API /Webhook help to pull/recieve updates from other website once customer update the qty, tier of his subscription?

on main website customer can add more units of what initially signed up for, different pricing will be applied, if unit and unit prcing slap is available on the website, can we using the API/webhook push /Pull such info at end of every billing cycle in order to send correct invoice, and no need to manually updates ?

Ans: Currently the pricing info needs to be fixed on myfundbox and subscription status can be checked through webhook and notification sent for transaction events.
however dynamic pricing based on varying quantity is not yet supported but is planned as an extension going forward.