# 2040
source: https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/2040/index.md

This error occurs when the financial institution returns an unexpected login error.

|             Title             |                                                                                                                                                                       Details                                                                                                                                                                       |
|-------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| **Aggregation Status Code**   | 2040                                                                                                                                                                                                                                                                                                                                                |
| **Remediation Category**      | Retry Later                                                                                                                                                                                                                                                                                                                                         |
| **HTTP Status**               | 401                                                                                                                                                                                                                                                                                                                                                 |
| **Error Type**                | Account Error                                                                                                                                                                                                                                                                                                                                       |
| **Data Connect Alert**        | No associated alert.                                                                                                                                                                                                                                                                                                                                |
| **Error Message**             | To effectively use the product you are connecting, please login with original credentials as multiple login detected for the same account.                                                                                                                                                                                                          |
| **Common Causes**             | This error can happen for the following reasons: * If the user is trying to log in multiple times simultaneously, for example, if the user is already logged into their bank account, which then rejects a second login attempt. * Mismatch in account information as entered by the end user and what is available at the financial institution. ​ |
| **Troubleshooting Steps**     | The end user must ensure to use same login credentials to match what is available at the financial institution. Prompt end user to avoid multiple logins for the same account in order to effectively use the product you are offering.                                                                                                             |
| **Data Connect Fix Eligible** | No.                                                                                                                                                                                                                                                                                                                                                 |
| **Retriable by End User**     | Yes, the end users can resolve this issue. ​                                                                                                                                                                                                                                                                                                        |
| **Access to Latest Data**     | You will be unable to access the latest data for this user's account until the end user resolves the issue.                                                                                                                                                                                                                                         |

[Full Error List](https://developer.mastercard.com/open-finance-us/documentation/errors/error-list/index.md) \| [Account Errors](https://developer.mastercard.com/open-finance-us/documentation/errors/account-errors/index.md)