Hi littlebentobox24,
Welcome to Community! Getting an error message when attempting to update your transactions in QuickBooks Online, can have a negative impact on your day. I would be glad to help!
There are multiple errors that may occur, and you can follow this link to learn how to resolve them.
If the issue persists, please contact us outside of Community. We'd be happy to look into your situation in more depth, and escalate it for further investigation if necessary.
Should you have other questions or concerns, feel free to reach back out. We would be happy to assist!