how do I stop two copies of my invoices going to my email?

Receiving duplicate invoices usually happens when your email is listed in the CC/BCC fields while the "Email me a copy" setting is also enabled.

To fix this:

1. Go to Settings > Account and Settings.
2. Select the Sales tab, then click the Messages section to edit.
3. Under Messages, clear any email addresses in the BCC and CC fields.
4. Make sure the “Email me a copy” checkbox is checked (this will send the copy only to the user who sent the invoice).
5. Then, click Save.
    

Once these settings are saved, QuickBooks will only trigger a single notification per invoice. Your inbox will remain organized, and you’ll no longer have to delete duplicate records of your sent sales forms.

Reply in this thread if you need guidance adjusting these settings, I’m happy to help.