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Intuit products such as TurboTax and Credit Karma use Plaid to integrate with financial institutions. It looks like the issue is that Plaid integrates with Morgan Stanley Client Serve but not Morgan Stanley at Work. See screenshot below of Google search AI.

If there are Intuit support people reviewing this board, it might be best to file a Jira (assuming you guys still use Jira) ticket with the Credit Karma eng team to remove "Morgan Stanley at Work" from the list of supported financial institutions in the link account flow. Not an ideal solution, but at least you are not frustrating your customers with a misleading user experience and flooding your customer support team with customers reporting the same issue.