KeyBank Error CC-503

alan3mo

Still getting error CC-503 when I try to add my KeyBank checking and savings account

The user name and password are correct

I have checked the selection allowing third party sharing

This was a known issue that was reported reportedly resolved in April 2025

Quicken Anja

Hello @alan3mo,

We appreciate you bringing this issue to our attention!

Upon reviewing your account, I was able to confirm you are receiving an internal FDP-103 error which presents as a CC-503 error in-product.

To start with, please review and follow this support article regarding error CC-503.

Let us know how it goes!

alan3mo

Thank you. I tried all the steps but still getting the same error

Quicken Anja

Thank you for following up!

Next, I suggest you try to deactivate all accounts for this financial institution, then force Quicken to "discover" all available accounts and see if this will help resolve it. Please, follow the instructions below in order to do so.

1. Open the Account List in Quicken (Tools > Account List OR Ctrl + A)
2. If present, select the Show Hidden Accounts checkbox at the bottom of the Account List
3. Edit each account with this financial institution to Deactivate (or Remove From One Step Update) on the Online Services tab
4. Click on the General tab and remove any info displayed in the Financial Institution, and Account/Routing Number fields. Note: The account must be deactivated first before these fields can be edited.
5. When finished, close the Account List
6. Close, then re-open Quicken
7. Navigate to Tools > Add Account 
8. Walkthrough this process as if you were going to add a new account, providing the login credentials and answering any security questions/processes presented until you reach the screen where Quicken displays the Accounts Discovered at the financial institution
9. Very carefully LINK each of the found accounts to the appropriate account you already have set up in Quicken.

Once that is done, see if the issue still continues to persist.

Let us know how it goes!