Whens the amex open banking going to work again? hasnt updated since 15/3/20

Glad to have you here in the Community, @tomr-electrical.

I'm here to ensure you'll get the most updated Amex banking transactions in your QuickBooks Online (QBO).

Since your Amex bank isn't updating, let's manually download your latest transactions. Here's how:

1. Click Banking from the left menu.
2. Select Amex, click the Update button.

If it's still not downloading the transactions, log in to your Amex website, and check for any alerts or notifications. Any messages or sign-in issues can block our program from downloading new transactions.

Also, if you encounter error messages upon updating, feel free to check this article to get them fixed: Open Banking Connection Errors.

Just in case you want to categorise and match your Amex transactions, you can read this article for the detailed steps and information: Categorise and match online bank transactions in QuickBooks Online.

Please post a reply below if you have other concerns with your bank transactions. I'll be more than happy to assist you again. Have a great day and take care always.