I have an idea on how you can do this in QuickBooks, Dunlop.
For now, there's no direct way you can attach the product prices through email to let your customers know about the price increase. Instead, you can manually enter the details on the body of the email, that includes the list of the item price increase, and the date of the effectivity. I've added a screenshot for your visual guide:
![](https://lithium-response-prod.s3.us-west-2.amazonaws.com/intuit.response.lithium.com/RESPONSEIMAGE/bb861d99-b267-4189-9a54-571f7cbecbbf.default.png)
Moreover, learn how you can record sales transactions in different ways after your customer pays for the products and services. I've added this article for more details: Record Invoice Payments in QuickBooks Online.
Post your comment if you need further assistance about emailing price increase. We're always here to help you. Have a nice day!