Invoice via Watssap

check the attached screen, this must be a default option for QB on-line. You may also check this setting

Sign in to your QuickBooks Online account.

Go to the Gear icon on the top right-hand corner of the page and click on "Account and Settings".

Click on the "Sales" tab in the left-hand menu.

Scroll down to the "Messages" section and click on the pencil icon to edit the message settings.

Check the box next to "WhatsApp" to activate the feature.

Click on "Save" to save the changes.

Hi, how are you?  Thank you for your retorn, but I did not found this function. 

Check the attached screen

Hi there, @9130 3557 8008 2246.

I appreciate you for sharing a screenshot with your Account and Settings. Allow me to share some information about the WhatsApp feature on your invoices.

The feature to send invoices via WhatsApp is unavailable to the US account and only available to selected regions like the United Kingdom, Australia, South Africa, etc. 

I'd highly suggest sending your feedback directly to our Product Development Team. They may look into this suggestion and consider adding it in a future update. 

Here's how:

1. Select the Gear icon at the top, then Feedback.
2. Enter your comments or product suggestions.
3. Then select Next to submit feedback.

For more information, see this article: How do I submit feedback?

Additionally, I'll be sharing these references on how to record your payments and personalize your sales forms:

• Record invoice payments in QuickBooks Online
• Customize invoices, estimates, and sales receipts in QuickBooks Online

Feel free to follow up and let me know how it goes. I'm always here to help. Stay safe.

Ok, thanks. 

@9130 3557 8008 2246 

If you need to send each invoice via WhatsApp, you can use a third party connector to do so.