I’ve got an update for you, @Hunter P.

QuickBooks Online constantly makes changes for a better experience. Our developers keep searching for ways to improve the program’s features to help and make your navigation easier.

As long as your document or attachment is added successfully, your customers can still see it. You can read this reference to learn more about managing attachments: Attachments in QuickBooks Online.

I’ve added this guide in case you‘d like to add specific information to your sales forms: Customize invoices, estimates, and sales receipts in QuickBooks Online. It includes instructions about changing email messages and setting a default custom template.

If you have any other questions or concerns besides attachments, please don’t hesitate to add a comment below. I’ll be here. Have a great day, and always take care!