I'd like to get more details on your concern. Are you subscribed to QuickBooks Online Simple Start? Do you also use Bill.com?
Thank you in advance.
If you're trying to sync your Bill.com app to QuickBooks Online, this feature is currently unavailable in the Simple Start version.
You'll have to upgrade your subscription to QuickBooks Online Essentials or Plus.
Here are the steps:
You can also visit our website to check the QuickBooks Online feature comparison chart.
Feel free to leave a comment or post a new question if you have other concerns. Thanks.