Hi everyone.

Allow me to take a moment and provide you with some information about connecting the Amex account into QuickBooks Online.

Our banking team is diligently investigating to prevent uncertainties like this. If you already reached out to our Customer Care Team, rest assured that you'll be able to receive updates about this issue. 

Also, I'd suggest visiting our QuickBooks Online outages page to keep updated with our latest news and updates. 

Lastly, as soon as an update is received, I, or another member of the Community team, will update this thread right away and let you know so that you can get back to business.

You've got me here if you have any other questions with QuickBooks Online. I'd be pleased to help you out.