Thanks for joining in this thread, CJ_Aus.
The error code 102 you've received in QuickBooks Online usually means there's ongoing maintenance on the bank's website or a connection issue. Have you tried doing the troubleshooting steps provided by Angelyn_T and MaryJoyD? If not, I'd recommend performing the troubleshooting steps to help isolate the situation encountered.
- Click on the Banking/Transactions tab.
- Click on the AMEX account you're having issues with.
- Click on Update.
- Check if there are new transactions downloaded. If not, proceed to the next step.
- Click on the Pencil icon of the bank account affected.
- Click on Edit sign in information.
- Enter your banks log in details manually.
- Click on Update.
The manual update helps resync your bank transactions in QuickBooks Online. If the issue persists, we'd recommend contacting our customer care team for them to escalate your banking connection in a secure form. Since the Community is a public space, we're unable to ask for your details here.
In the meantime, you can manually upload the missing bank transactions in QuickBooks using a CSV file form. Here's a link for more detailed information What to do if you get a bank error or can't download transactions in QuickBooks Online and Manually upload transactions into QuickBooks Online.
As always you can post your questions here in the Community and we'll be sure to get back to you as soon as we can. Have a good one.
