I'm here to help you investigate why your Journal Entries (JE) create automatic duplicates in QuickBooks Online.
One possible reason for duplicates JE is having recurring transaction entries. There's a possibility that other users accidentally create a template. To check the setting, please follow the steps below.
Click the Gear icon on the right side.
Choose Recurring transactions under Lists.
Review the TXN Type column if there's a Journal Entries.
Hit the small drop-down arrow beside Edit, then tap Delete or Pause.
It's my priority to help you get in touch with our support team, @1slvrfx.
This may be a browser-related issue. In this case, we can perform some troubleshooting steps to fix this. Let's log in to your account using a private browser. This mode will not save any history, making it a great place to identify browser issues.
You can use these shortcut keys listed below:
Google Chrome: press Ctrl + Shift + N
Mozilla Firefox: press Ctrl + Shift + P
Safari: press Command + Shift + N
Then, get a callback request or chat option in the Help icon. If it works, go back to your regular browser and clear the cache. This helps delete stored site data and improve the system performance. Also, you can use other supported browsers. It could be that the one you're currently working on has a temporary problem with QuickBooks.
Otherwise, you can utilize the Help menu through our QBO test drive.