Can i edit and resend an invoice?

You're in the right spot, nordicartcp.  Allow me to lay out some steps on how you can edit and resend an invoice in QuickBooks Online (QBO).
 

There's an option to modify and resend an invoice. Here's how to do it:
 

1. Go to the Sales and select Invoices. 
2. Scroll to the invoice you wish to edit and click on it to open it up.
3. Make the necessary changes.
4. Click Save and Send (or Save and Close).
 

With that in mind, you can check this article for more detailed info: How to edit an invoice.
 

In addition, if you want to learn how to run reports for specific accounts in QBO, you can check this article: Run reports in QuickBooks Online.
 

If you need further guidance on how to edit your invoices or if you have other QBO concerns, I'm here 24/7 to help you, nordicartcp. Take care always!