Documenting on Quickbooks accurately

Hello, I am wondering if anyone is open to sharing how they document on Quickbooks? 

I am realizing when I enter and invoice. Get a rejection. Then change the invoice date to reflect when we resent that claim - my books are not reflecting accurately. 

I could show I billed out $10,000 to for someone in September.

Get rejected.

Edit those invoices for October. 

So for our board of directors the original September totals would look different after I did that. 

Any input would be great ! Thank you!