# Data Loss Events API Error Codes
source: https://developer.mastercard.com/riskrecon-api/documentation/code-and-formats/rrecon-srv-error-cds/data-loss-err-cds/index.md

### 4xx - Data Loss Events API Error Codes {#4xx---data-loss-events-api-error-codes}

| Sr.No. | Reason Code |                      Description                       |                                                                                      Resolution Tip                                                                                       |
|--------|-------------|--------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 1      | BAD_REQUEST | page: is invalid                                       | Specify the correct value and try again. Refer to the [API YAML Specification](https://developer.mastercard.com/riskrecon-api/documentation/api-reference/index.md) for more information. |
| 2      | BAD_REQUEST | page: must be greater than or equal to 1               | Specify the correct value and try again. Refer to the [API YAML Specification](https://developer.mastercard.com/riskrecon-api/documentation/api-reference/index.md) for more information. |
| 3      | BAD_REQUEST | per_page: is invalid                                   | Specify the correct value and try again. Refer to the [API YAML Specification](https://developer.mastercard.com/riskrecon-api/documentation/api-reference/index.md) for more information. |
| 4      | BAD_REQUEST | per_page: must be less than or equal to 50             | Specify the correct value and try again. Refer to the [API YAML Specification](https://developer.mastercard.com/riskrecon-api/documentation/api-reference/index.md) for more information. |
| 5      | BAD_REQUEST | sort_method: is invalid                                | Specify the correct value and try again. Refer to the [API YAML Specification](https://developer.mastercard.com/riskrecon-api/documentation/api-reference/index.md) for more information. |
| 6      | BAD_REQUEST | sort_attribute: is invalid                             | Specify the correct value and try again. Refer to the [API YAML Specification](https://developer.mastercard.com/riskrecon-api/documentation/api-reference/index.md) for more information. |
| 7      | BAD_REQUEST | public_event_start_date: is invalid                    | Specify the correct value and try again. Refer to the [API YAML Specification](https://developer.mastercard.com/riskrecon-api/documentation/api-reference/index.md) for more information. |
| 8      | BAD_REQUEST | breach_event_start_date: is invalid                    | Specify the correct value and try again. Refer to the [API YAML Specification](https://developer.mastercard.com/riskrecon-api/documentation/api-reference/index.md) for more information. |
| 9      | BAD_REQUEST | created_at_start_date: is invalid                      | Specify the correct value and try again. Refer to the [API YAML Specification](https://developer.mastercard.com/riskrecon-api/documentation/api-reference/index.md) for more information. |
| 10     | BAD_REQUEST | Slug `<slug_name>` does not match any customer buckets | Specify the correct value and try again. Refer to the [API YAML Specification](https://developer.mastercard.com/riskrecon-api/documentation/api-reference/index.md) for more information. |