Hi @userjay,

I'll handle this query for you about your invoices that are sent automatically to your clients. 

QuickBooks Online (QBO) doesn't have the feature to send invoices right after you edit them. If you click Save and send, then it's a different situation. Ensure you select Save and close for your invoices, so your changes aren't visible to your clients. 

Since you stated that you have jobs that you often modify, I suggest you view this article: Set up and send progress invoices in QuickBooks Online. It allows you to split an estimate into as many invoices as you need. 

Tag me in your comments below if you have other concerns with your QBO company. I'll handle them for you.