Hello there, @Pushkin.
Due to some changes and updates, there are banks for which there is no open banking solution readily available. For American Express, continue importing bank transactions using CSV file uploads until your new connection is available. Your bank might give you options for how to download/export your transactions. You can pick one of these so you can upload the file to QuickBooks Online (QBO):
- Comma-Separated Values (CSV)
- QuickBooks Online (QBO)
For additional reference about download transactions from your bank or credit cards, then manually import them into QBO, feel free to open this link.
You as well read the topics from this article in case you need additional resources while working with your bank or QuickBooks: Find help with bank feeds and reconciling accounts.
Post again if you have any other questions. I'm always here to help. Have a good day!