Ally CC-503 error during sync

Pdice

Hello, I have been able to update my Ally Bank transactions for about 3 months now. I have reached out to Quicken support a few times and they were not able to resolve it. The issue seemed to start after Ally locked my account due to someone attempting to many bad logins. I have spoken to Ally and they claim all is well on there side of things. So far I have tried to deactivate the online connect and readd it but I always get a CC-503 error. I am hoping that someone out there can assist me. Thanks.

Version - R62.16
Build 27.1.62.16

Quicken Kristina

Hello @Pdice,

Thank you for reaching out to the Community with this issue. Do you have the ticket numbers from your contacts with Support? The only one I was able to locate was when you contacted Support about an issue with CC-502 errors on 31 Mar 2025.

You mentioned that the issue started after your Ally account got locked due to too many incorrect login attempts. Did you change your login credentials in response to that incident? Did Ally implement any additional security which may be blocking the attempts to connect?

If you haven't already done so, I recommend that you start troubleshooting this issue by making a backup of your Quicken file, then following these steps from this article on CC-503 errors:

Step One: Verify your bank login information

1. Type your password/PIN into a text application, such as Notepad, WordPad, or other text/word application. 
   • Note: This is a way of confirming you don't have typographical errors in this field.  
2. Highlight the "confirmed" password and then copy it (Ctrl + C) and paste it (Ctrl + V) into the appropriate fields in Quicken.

Step Two: Verify your bank login at the bank's website

1. Go to your bank's website and confirm that you're able to log in with the expected username and password.
2. Once you are logged in, review your account at the website for notifications (such as pending messages in a mailbox or message center) to confirm if further action is required to grant Quicken access. 
   • Some banks will require a separate login, password, or both to access accounts on third-party software. Also note, you may need to go to your settings at the website to access these prompts for new credentials. 

New passwords: If you are required to make a new password, be aware that some special characters may cause errors in Quicken. These special characters are the ampersand (&), left carat (<), right carat (>), backslash (\), and forward slash (/). Additionally, while Quicken does not have a character limit, your bank may have one. 

If the issue persists

Try Deactivating and Reactivating the affected accounts:

1. Choose Tools > Account List.
2. Click the Edit button next to the account you want to change the login ID for.
3. In the Account Details window, click the Online Services tab.
4. Click Deactivate, and then click Yes to deactivate online services.
5. Click Yes again, if necessary, to confirm your choice.
6. Repeat these steps to deactivate all accounts at this same bank.
7. Return to the Online Services tab and click Set up Now for each account you've deactivated.
8. Enter the correct login ID and follow the on-screen prompts to activate your account.

I look forward to your reply!