If such is the case, you need to follow these steps:
First, you need to log in to your bank’s website.
Then, you need to modify your password and use characters that do not include any of those special characters like, &, <, >, \, or /.
Next, Launch Quicken and navigate to Tools > Password Vault > Add/Edit Passwords.
Then, you need to select the account that’s in the Password Vault.
Now, select Change Password for that account.
Type in the same password with which you just logged into the bank’s website, and then select Change, then click on Done.
Finally, choose Tools > One Step Update in order to confirm that the error you were facing is resolved. In case you seem to have missed a particular step while following this procedure, feel free to contact the Quicken support phone number.
Another way to get rid of Quicken Error CC-502 in Quicken is by deactivating and reactivating your Quicken accounts. The steps to which are as follows:
First, you need to click open the Quicken Application.
Then, you must click on Tools and gain access to Account List.
After that, click on the Citi Bank Account and select the Edit button.
Next, you need to select the Online Service tab and then choose to Deactivate the account.
Now, you must cautiously repeat the same action to deactivate each of your Citi Bank accounts.
Finally, click to exit the Quicken application.
Now, open up the Quicken application and search for any release updates that are available.
In Windows – You need to select the Help Section and then click on Check for updates.
In Mac –You need to click on the Quicken button in the menu bar and select the Check for updates option.
Later on, you can go ahead and follow the aforementioned procedure and reactive your all Citi bank accounts.