I understand how frustrating it is when your previously linked AMEX accounts suddenly stop connecting, Louies.
Could you please share the details if you have encountered any error messages? This will help us check further and provide an accurate response to this issue.
In the meantime, I suggest opening your QuickBooks Online account using an incognito or private browser and re-authorizing the permission to determine if browser-related issues are causing the connection problem.
If the issue persists, I recommend contacting our Live Support team. They will help thoroughly examine the cause of the problem and have more access and capabilities to resolve it promptly.
Here's how:
- Click the Help menu or the (?) icon in the upper-right corner of QBO.
- Go to the Assistant tab.
- Type "contact support" in the chat box and press Enter.
- Provide a brief description of your concern and click Continue.
- Choose your preferred option. Have us call you or chat.
Please leave us a response if you have other questions or concerns.