I'm glad to have you here in the Community. Let's ensure you'll be able to send invoices to your customers.
To begin with, if you're sending invoices through a web browser to WhatsApp, please ensure that you've updated your Adobe Reader/Acrobat. If you've already updated it, and the invoice still has a black background, I suggest performing browser troubleshooting. Issues like this are usually the result of accumulated cache.
We can start by accessing your account through a private browser. You can refer to these shortcut keys to open a private window in all supported browsers:
If it works, I recommend clearing your browser's cache so the system can start fresh. You can also switch to a different supported browser to see if it has something to do with your browser.
On the other hand, if you're sending an invoice through a mobile app, let's perform a mobile app troubleshooting.
Android:
iOS:
If the problem continues, you can try uninstalling the app and then reinstalling it to refresh the system.
Additionally, this article can help you manage your invoices:
Let me know if you have further concerns about sending an invoice via WhatsApp or have any QuickBooks-related concerns. Keep safe.
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