Citibank credit card to QB’s (authorize access) button is not active to approve the connection and transfer of data
Welcome to the Community, @Gilmanbl. I want to make sure you're able to connect your Citibank credit card account in QuickBooks Online (QBO).
To give you an idea, the connection window that is displayed is not generated or controlled by QBO but by CitiBank.
Also, a possible cause for this button to being greyed out might be a hold on the account that does not allow the connection to QBO. Or the user who is attempting to connect account may not have access or permission to add a bank.
I suggest you verify the status of your account with your bank and also check the user's access who is attempting to connect your bank or credit card account in QBO.