We received a "Credit for AMEX Error" message on the March bank statement for $6. How do I record it? It doesn't pick up in the CC feed?

I've got you covered on handling the credit card credit that wasn't linked to a vendor purchase, Jackie.

The data we receive in QuickBooks depends on the information sent to us by the financial institution. We recommend waiting for the credit card statement of $6.00 to be posted before we can record it in QuickBooks Online (QBO). Once done, we can now record the credit card credit by following the steps below:

1. Click the + New Plus icon. 
2. Select Credit card credit.
3. In the Payee field, you can leave it as a blank.
4. From the Bank/Credit account ▼ dropdown, select the credit card from which you received the refund.
5. Enter the Payment date, refund Amount, Tax, and Category. The category used here is the original expense account on the original bill.
6. Press Save and close.

See the screenshot below as an example:

For future reference, here's an article you can check for the best practices when reconciling your account: Learn the reconcile workflow in QuickBooks. It also provides information on what to do when encountering challenges during the reconciliation process.

I also encourage reading these articles to help better manage your downloaded bank transactions in QuickBooks Online:

• Categorize and match online bank transactions
• Set up bank rules to categorize online banking transactions

Tag me in your reply if you have other questions about recording your credit card transactions. I'll be here to help you out. You have a good one.