@jeanbiverly_  "

1. Edit each product to reflect the amount you'll use on the invoice.
2. Generate the invoice using the edited amounts.
3. Update the product to reflect the new sales price.
4. Create a new invoice with the updated prices.
5. Edit the product again to save the new sales price permanently.

"

My brother in Christ, are you making a joke here?

This topic is about a longstanding QuickBooks behaviour, whether on Desktop or Online; when you change the Item on an already established row in a sales receipt or Invoice, it will 100% reset the price to 0.

The only reasonable workaround is to either make a mental note of the price and re-enter it after changing the item, or highlight the price and copy/paste it back in after changing the item. Why are you having them go down this rabbit hole?

This has been a thing for well over a decade.