# 324
source: https://developer.mastercard.com/open-finance-au/documentation/errors/accounterrors/324/index.md

This error occurs when there's a mismatch between the user's account information provided to your application and the information held at the financial institution. ​

|            Title            |                                                                                                                                                                                                                                                                                      Details                                                                                                                                                                                                                                                                                       |
|-----------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| **Aggregation Status Code** | 324                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **Remediation Category**    | Data Connect Fix                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| **HTTP Status**             | 500                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **Data Connect Alert**      | We ran into a connection error, try again later or select another institution. (324) ![324](https://static.developer.mastercard.com/content/open-finance-au/uploads/324.png)                                                                                                                                                                                                                                                                                                                                                                                                       |
| **Error Message**           | During the add account process an error occurred in the financial institution connection. Submitting a [support ticket](https://developer.mastercard.com/open-finance-au/documentation/support/index.md#create-a-support-case-in-scm) is the recommended action.​ For already added accounts this means that the customer's account information has changed at the financial institution. Submitting a [support ticket](https://developer.mastercard.com/open-finance-au/documentation/support/index.md#create-a-support-case-in-scm) is the recommended action to fix this issue. |
| **Common Causes**           | The account did not update because there was a mismatch detected between account connected by the end user and the account available at the financial institution. ​​​                                                                                                                                                                                                                                                                                                                                                                                                             |
| **Troubleshooting Steps**   | Submit a support ticket for troubleshooting. ​                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| **Retriable by End User**   | No. ​                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| **Access to Latest Data**   | You will be unable to access the latest data for this user's account until the issue is resolved. ​​                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |

[Full Error List](https://developer.mastercard.com/open-finance-au/documentation/errors/error-list/index.md)