Hi there, Michele. Allow me to provide some clarifications on why you've encountered an error message in a downloaded QuickBooks app.
The error usually occurs when you've used credentials that aren't matched with the product you've downloaded. For instance, if you downloaded QuickBooks Online but entered credentials for QuickBooks Self-Employed, it will trigger an error because they don't match.
Additionally, please note that the QuickBooks Self-Employed (QBSE) mobile app for iOS is no longer available in the Apple App Store, as it will soon be discontinued. However, if you downloaded the app before March 24, 2024, you can continue using it, with product support and updates still available.
While existing QBSE subscribers can maintain their current subscriptions, new customers are encouraged to explore QuickBooks Sole Trader, an enhanced solution tailored for single business owners.
If you really want to track your mileage, I recommend using your desktop, as you mentioned that it works well there.
Feel free to reach out below if you need further assistance.