This can be resolved by modifying the QuickBooks Integrated Application Certificate.
Go up to Edit -> Preferences. Select ‘Integrated Applications’ on the left hand side.
Under Company Preferences, select ‘Acctivate’ and then select ‘Properties’.
There is an option, depending on the version of QuickBooks you are running, to enable the synchronization of Social Security Numbers, Credit Card Information, and other Personal Data. Enable this option.
Save and close QuickBooks preferences.
Run another synchronization with Acctivate.