quicken error cc-501 is commonly caused by an outdated version of Quicken or an issue with the account settings. Resolve with the following steps:
First, update your Quicken software to the latest version.
Then, ensure that your account settings are up to date by navigating to the Account List, selecting the affected account, and clicking Edit > Online Services > Set Up Now.
If the error persists, try deactivating and reactivating the account in Quicken. If the issue persists, contact your financial institution to ensure no issues with their servers.
