Welcome to the Community, @anison.

Having a default email in the Blind copy (Bcc) field when sending invoices is simple and easy. We can achieve this in the Account and Settings page. I'll guide you with the steps:

1. Click the Gear icon ⚙️ at the top right corner, and then select Account and Settings under Your Company.
   
   
2. Choose the Sales tab, and then tap the pencil icon ✏️ under the Messages section.
3. Enter the email you wish in the Bcc field, and then pick Invoices and other sales forms in the Sales forms drop-down ▼.
4. Click Save, and then Done to confirm the action.
   
   

To make your invoices more appealing and look personalized, you can customize them. Click this link for more info.

Also, you'll want to batch email or print your invoices and other sales forms to make your task easy and efficient. I've got this handy resource as your guide.

Finally, you may enter the invoice payments in QuickBooks Online to organize your records and properly reflect them on your reports. Browse this article for more details.

Click the Reply button if you need more help with managing your invoices or any QuickBooks-related concerns. Take care and have a pleasant day.