Your efforts in sharing your experience are much appreciated zap. Having the option to send invoice copies to multiple recipients is essential for efficient business communication. I'm here to offer some alternative steps you can follow and ensure your suggestions are heard.

You can utilize the Cc (carbon copy) or Bcc (blind carbon copy) fields or directly add additional email addresses to a customer's profile. This flexibility ensures that all relevant parties receive the necessary information promptly and efficiently.

Meanwhile, I fully appreciate and understand the importance of feedback enhancing our services. I suggest submitting your feature recommendation to our Product Development Team. This allows them to consider incorporating your feedback into future updates, which helps us better serve your needs. 

Here's how:

1. Go to the Gear icon in the upper right corner.
2. Under the Profile icon, choose Feedback.
3. Enter your feedback suggestion.
4. Click the Next button.

Additionally, I'll provide links to articles that offer further insights into recording invoice payments, splitting a quote into as many invoices as you need, and adding specific details to personalize your sales forms:

• Record invoice payments in QuickBooks Online
• Set up and send progress invoices in QuickBooks Online
• Customise invoices, quotes, and sales receipts in QuickBooks Online

For further questions about sending out invoices, post them in the comments below. I'll respond to them as promptly as I can.