Evening, when I send out invoices via wattsapp from the Preview and send function on QB then they come out black. There was advice given but does not change. ?

We appreciate you performing the relevant troubleshooting to address your concern, Barry. I'll ensure you get the help you need from the appropriate support.

Since invoices come out black even if you've uninstalled and reinstalled the application and utilized different devices, I recommend contacting our customer support team. With their tools and expertise, they can thoroughly investigate this matter and determine the most appropriate resolution.

Here's how you can reach an expert using your device browser:

1. Sign in to your QuickBooks Online company.
2. Click (?) Help and proceed to the Search tab.
3. Select Contact Us and enter a short description of your issue to Continue.
4. Pick Start a chat to connect with our support.

Additionally, please observe their support hours for a successful connection. For more information, visit this material: QuickBooks Online support.

On the other hand, you might want to scan this resource for guidance whenever you need to update customer payments: Edit a sales receipt or invoice payment using the QuickBooks Online mobile app,

Kindly revert to this thread and tag us with your replies if you have other queries about sending invoices using the QuickBooks Online app. It's our top priority to provide further assistance to any queries you have.