-Unity IAP- Can I do UnityPurchasing.Initialize() more than one time without losing incomplete transactions, without any problems?

Can I do UnityPurchasing.Initialize() more than one time without any problems? If I do UnityPurchasing.Initialize() more than one time, Will incomplete transactions be lost?

I want to check shop item infos from my own server every time of launching app from background to foreground. And I want to do UnityPurchasing.Initialize() every time in order to reflect shop item product id changes.

In this case, If I have not completed purchase transactions before hiding app to background, Will incomplete transactions be lost by UnityPurchasing.Initialize()?

If so, is there any other good way to refresh shop items without losing incomplete transactions, without any problems?

(in iOS/Android)