Auto syncing on your account is failing. Your error log has no messages.
You are able to manually sync QuickBooks sales, but auto sync fails to pull in your sales.
Ensure tasks exist
Log into Connex. On the left, click schedule tasks. Ensure you have an orders task, if you sync sales to QuickBooks. If you sync sales from QuickBooks to ShipStation, ensure an OrdersToECommerce tasks exist:
If a task is missing, click settings on our dashboard. Click orders to QuickBooks. Click save. Click orders from QuickBooks. Click save.
Ensure task is enabled
If you disconnect from Connex, our software will disable the sync. Go to scheduled tasks. Click toggle, if you see an X:
Not Enough Time Passed
Under scheduled tasks, look at the last update. It uses UTC time. Please check Google for UTC time. Compare it to the current time. If the sync runs every two hours and the sync ran an hour again, then no syncing occurs.
QuickBooks Online Disconnected
If you log into Connex as a different user, QuickBooks will ask you to disconnect Connex.
If you must repair, log into Connex. Click settings. Click chart of accounts. Click the first pull down. Wait 5 - 10 seconds. You should see a list. If not, read this guide.
Our QuickBooks online customers have had issues with auto sync that we are unable to guarantee that autosync will stay consistent.
Our recommendation to all of our QuickBooks online customers is to manually sync at least once a day and more often if you choose.
Please follow the above suggestions we are unable to further assist with any auto sync issues at this time and we are sorry for the inconvenience of having to manually sync. You may reach out to Intuit support for QuickBooks Online and see if they are able to look into the matter from their end.