How do I edit name of the invoice for a duplicated Invoice?

Thank you for adding your first post, Seda2. I'll help you edit the name of your invoice in QuickBooks Online (QBO).

You need to open the transaction to modify the name. Here's how:

1. Sign in to QuickBooks as an admin to avoid restrictions.
2. Go to the Sales menu, then Invoices.
3. Look for the invoice from there.
4. Select View/Edit under Action.
5. Go to the Customer dropdown, then select the correct name from there.
6. Hit on Save and Close.

If the box is still unavailable, I recommend opening your account through a private window to narrow down the result. The stored cache on the browser you're using may affect this behaviour.

Here are the keyboard shortcuts:

• Google Chrome: press Ctrl + Shift + N 
• Mozilla Firefox: press Ctrl + Shift + P 
• Safari: press Command + Shift + N

If it works, clear the cache of your main browser to remove browser history. Otherwise, use another supported browser as an alternative.

Here's an article you can open for more tips while handling your invoices: Create invoices in QuickBooks Online.

On the other hand, if you need to delete duplicate entries in the future, see this link as your reference: Void or delete transactions in QuickBooks Online.

I'm happy to share these details with you today. If you have follow-up questions, let me know by leaving a comment below. I'm just a few clicks away to help you again. Keep safe!