Error: Request failed with status code 401/404/500, Error: Issue creating customer, Error: Issue creating product (Request failed with status code 300), Error: An exception was thrown that was not handled correctly.
If you received any of these error messages above, it means that there was a MYOB API failure.
Try out the following solution:
First, select the order with this error.
Click the drop-down option beside "Sync to Myob" and select "Re-Sync".
If this solution did not help resolve your error, please don't hesitate to reach out to us at [email protected] and we will look into resolving the issue for you.