I can see how beneficial it is to add the price rules feature in the international version of QuickBooks Online (QBO) for you and your business, @Tristn. That's why I'm here to share further details about this.

Currently, there's no definite date and time for the price rules feature availability in the international version of QBO. However, you can define each specific item price you charge or sell to your customers or manually apply a discount to one or more items on your sales forms as a workaround.

After that, you can pull up a transaction report of your choice. This way, you'll be able to effectively monitor all your sales transactions and make sure they're updated. Just go to the Report menu's Standard tab.

I'm also adding this article to further guide you in managing your business income using QBO: Manage Customers and Income for QuickBooks Online. It contains topics about statements, invoice payments, and credit notes to name a few.

Please let me know if you have other concerns. I'm just around to help. Take care always.