I could not access my app. There was a 403 error so I deleted the app and reinstalled it. Now it will not allow me to sign in. What can I do?

I appreciate the efforts you've made in troubleshooting the issue with your mobile app, Kristine. Let's work together closely to address this problem and ensure you can regain smooth access to your app.

Error code 403 generally means that the app can’t connect to our services online. It's important to note that there should be no compatibility issues between the application and the operating systems, whether you are using iOS or Android. Please verify both your device's operating system and the application itself are updated to their latest versions. This can help prevent any potential conflicts and ensure smoother functionality.

For IOS:

1. Go to Settings, then General.
2. Select Software Update and follow the prompts to install any available updates.

For Android:

1. Proceed to the Settings app.
2. Navigate to the System and then Software update.
3. Follow the on-screen instructions.

After updating, attempt reaccessing the app using the correct credentials.

In addition, be sure to update your mobile app as well by following these guides:

For IOS: Update apps from the App Store on iPhone.

For Android: How to update apps on Android.

Once everything is up and running, you might also want to learn how to set up and manage everything in QuickBooks Self-employed (QBSE). For detailed guidance, please refer to this article: Overview of QuickBooks Self-Employed. 

Ensuring a seamless user experience with our app is our utmost priority. I am dedicated to providing you with continuous support and detailed assistance for any questions or issues you may encounter. I am here to help you every step of the way.