Hi I’ve just tried to add an expense and all of my expense categories have disappeared. I’ve deleted and reinstalled the app which hasn’t helped.

I appreciate you performing initial troubleshooting steps to rectify the issue, Pearson. Allow me to share additional info so you can seamlessly add your expenses to the program.

Beforehand, may I know what device you are currently using to access QuickBooks Online (QBO)? This way, we can check if there are ongoing investigations on our end.

The QBO app frequently maintains a cache to speed up your experience while completing your tasks. However, your system may act unexpectedly when the cache is full, such as losing access to specific functionalities. You may also experience this if your app needs to be updated.

To sort this out, let's refresh the data within the app or from the settings menu on your mobile app to remove the older cache that causes this odd behavior. Follow the steps below according to your mobile device:

For iOS:

1. Go to Settings, then tap General.
2. Tap iPhone Storage, then tap the QuickBooks Online app.
3. Tap Offload App.

For Android:

1. Go to Menu ☰, then tap More Options⋮.
2. Tap Settings, then Refresh Data.
3. Tap YES to confirm.

After refreshing your data, you can sign out of your account and then sign back in to see if the expense categories are now available.

In the meantime, you can utilize your mobile devices' browsers to record your expenses. Simply visit this article for the requirements to access the program seamlessly: QuickBooks Online access for mobile devices.

You'll also want to visit this article for the detailed steps in case you need to review all your supplier transactions: How to view and edit supplier transactions in QuickBooks Online.

If you have other questions about handling your expense transactions in QBO, kindly reply to this thread. It's our priority to ensure everything is taken care of. Have a great day!