Hello there, @accounts355.
I'll make sure to get rid of the error message so your data QuickBooks Online (QBO) mobile app sync accordingly.
Let's perform a few troubleshooting steps to determine why such an error message saying "Data Sync Error" pops up and resolve it. One of the possible reasons causing this problem is the cache stored on your device.
Saying you've already tried clicking Refresh Data from the app, let's remove the temporary cache outside the program by following the steps below:
For Android devices:
- Go to Settings.
- Under App Manager, hit your QuickBooks App.
- Click Clear Cache.
For IOS devices:
- Go to Settings.
- Under General. tap Storage.
- Choose your QuickBooks app.
- Click Offload App.
For future purposes, I'll be leaving these articles. Feel free to visit the following:
For all the features and functions of QuickBooks Online, you can log in to any of our supported browser versions and use this reference for guidance: Help Articles in QuickBooks Online. Also, you're able to read subtopics that will describe how a feature is used and how to accomplish tasks related to its functions.
Let me know in the comments if you have any other questions aside from working with your company data in QuickBooks using the mobile app. Use the Reply option below to leave a comment. Take care always and stay safe!
