When creating a statement for a parent customer, it needs to also show the NAMES of each sub-customer. i.e. which sub-customer each invoice belongs to

Hi there, @WildPepperIsle.

I appreciate your feedback about creating a statement for parent customers to show the names of each sub-customer. Rest assured our engineers are working nonstop to enhance the product and deliver the best experiences for all QuickBooks users. You can visit our blog site to stay current with the latest QuickBooks news and feature updates. Here's the link: The QuickBooks Blog.

You can also get more tips about statements through this article: Create and send customer statements in QuickBooks Online.

Aside from that, you can also get more hints while handling your sales and other customer entries through this link: Topics about your company's income and customers.

If you have any follow-up questions about customer statements, let me know by adding a comment below. I'm more than happy to help. Wishing you a good one!