# 14023
source: https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/14023/index.md

This error occurs when the request is malformed or incorrect.

|             Title             |                                                                Details                                                                 |
|-------------------------------|----------------------------------------------------------------------------------------------------------------------------------------|
| **Error Code**                | 14023                                                                                                                                  |
| **Remediation Category**      | Invalid Input                                                                                                                          |
| **HTTP Status**               | 404                                                                                                                                    |
| **Error Type**                | Request Error                                                                                                                          |
| **Data Connect Alert**        | No associated error.                                                                                                                   |
| **Error Message**             | Invalid Customer ID​.                                                                                                                  |
| **Common Causes**             | This error occurs when using an incorrect ID, or attempting to access a customer that does not exist.                                  |
| **Troubleshooting Steps**     | Verify the customerId used in your request and ensure it matches an existing customer. You can also create a new customerId and retry. |
| **Data Connect Fix Eligible** | No.                                                                                                                                    |
| **Retriable by End User**     | No.                                                                                                                                    |
| **Access to Latest Data**     | You cannot access the latest data until the issue is resolved.                                                                         |