# Connection Not Certified
source: https://developer.mastercard.com/open-finance-au/documentation/errors/institutionerrors/connection-not-certified/index.md

This error is associated when a connection to the selected financial institution has encountered an unknown error. ​

* [11000](https://developer.mastercard.com/open-finance-au/documentation/errors/institutionerrors/connection-not-certified/index.md#11000)
* [1415](https://developer.mastercard.com/open-finance-au/documentation/errors/institutionerrors/connection-not-certified/index.md#1415)

## 11000 {#11000}

|            Title            |                                                                                                                                                Details                                                                                                                                                 |
|-----------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| **Aggregation Status Code** | 11000                                                                                                                                                                                                                                                                                                  |
| **Remediation Category**    | Report or Escalate for Investigation                                                                                                                                                                                                                                                                   |
| **HTTP Status**             | 500                                                                                                                                                                                                                                                                                                    |
| **Data Connect Alert**      | We're sorry, an unknown error occurred. (11000)​                                                                                                                                                                                                                                                       |
| **Error Message**           | 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.​                                                                     |
| **Common Causes**           | Connection is interrupted temporarily due to an unexpected error. Its possible that during the add account process an error occurred in the financial institution connection. For already added accounts this means that the customers account information has changed at the financial institution. ​ |
| **Troubleshooting Steps**   | Submit a [support ticket](https://developer.mastercard.com/open-finance-au/documentation/support/index.md#create-a-support-case-in-scm) for troubleshooting. ​                                                                                                                                         |
| **Retriable by End User**   | No.                                                                                                                                                                                                                                                                                                    |
| **Access to Latest Data**   | Yes, data refresh is impacted until issue is resolved. ​                                                                                                                                                                                                                                               |

## 1415 {#1415}

|            Title            |                                                                                                                                                Details                                                                                                                                                 |
|-----------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| **Aggregation Status Code** | 1415                                                                                                                                                                                                                                                                                                   |
| **Remediation Category**    | Invalid Input                                                                                                                                                                                                                                                                                          |
| **HTTP Status**             | 500                                                                                                                                                                                                                                                                                                    |
| **Data Connect Alert**      | Your financial institution isn't currently supported to establish a connection to your accounts. (1415)                                                                                                                                                                                                |
| **Error Message**           | 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.​                                                                     |
| **Common Causes**           | Connection is interrupted temporarily due to an unexpected error. Its possible that during the add account process an error occurred in the financial institution connection. For already added accounts this means that the customers account information has changed at the financial institution. ​ |
| **Troubleshooting Steps**   | Submit a [support ticket](https://developer.mastercard.com/open-finance-au/documentation/support/index.md#create-a-support-case-in-scm) for troubleshooting. ​                                                                                                                                         |
| **Retriable by End User**   | No.                                                                                                                                                                                                                                                                                                    |
| **Access to Latest Data**   | Yes, data refresh is impacted until issue is resolved.                                                                                                                                                                                                                                                 |

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