There were a complete lot of possibilities for Quicken Error CC502. A number of them are given just below.
Banking institutions updated some services Data File having a concern
Quicken is not running with release etc that is the latest. But a question arises here, just how can we resolve it?
To repair this pressing issue, the below methods may be useful for you, or even reach Quicken Premier Support.
Method-1: Ensure that you’re with the latest Quicken release.
Open Quicken
Go to Help > Check for updates
If a release is new there, Click Yes. Click Update then Yes. Follow on Screen instructions now. Then try to update the accounts if the problem resolves that is good but if still exists follow Method 2.
Method-2: Refresh Online Banking Information
Go to the account that is a particular Account Bar with a mistake code. Go through the right side gear icon with a downwards arrow or press Ctrl+Shift+N
Click on Update now (Ctrl+Alt+U)
Make a checkbox and type a password on the account that is particular
Click Update Now
Alright, One Step Update Summary will show you the status
If the Account is fully updated that is great or still having Quicken Error CC-502 proceed.