I need a help with Create a Subscription Price Change

Hello everyone: I have a question regarding subscription price settings that I would like to ask. The specific API is this one: https://developer.apple.com/documentation/appstoreconnectapi/post-v1-subscriptionprices When I set the initial price, for example, setting a price point A for the US, one of the parameters I set for this price point is preserveCurrentPrice as false. Now, when I want to adjust the price from price point A to price point B, there are two scenarios:

Adjusting for all users. Adjusting for new users only. In both scenarios, when I set price point B, should I set the preserveCurrentPrice parameter to true? Do I need to reset any attributes for price point A, or will Apple automatically handle whether to retain price point A when I only set price point B? I would appreciate it if someone could help me answer this. Thank you all!

I need a help with Create a Subscription Price Change
 
 
Q