> ## Documentation Index
> Fetch the complete documentation index at: https://grandcentral.backbase.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Reference

> Error code mappings between BioCatch and Grand Central for troubleshooting

The BioCatch integration adds behavioral biometrics to fraud detection, analyzing how a user interacts with your app to retrieve an activity decision and to send feedback on that decision. For setup steps, see [Get started](/connectors/fraud-detection/biocatch/get-started).

## Supported operations

The BioCatch connector supports the following operations.

### Retrieve user activity analysis

* Retrieve user activity analysis details and decision.

### Provide feedback on user activity analysis

* Provide feedback on the user activity decision retrieved in case of false positive or false negative.

## Events

This connector is synchronous and doesn't publish or consume events.

## Error mapping

The following table maps each BioCatch error code to its Grand Central counterpart:

| BioCatch code                                          | Grand Central code |
| :----------------------------------------------------- | :----------------- |
| `wrong customer id was provided`                       | `GC025`            |
| `missing customer id`                                  | `GC025`            |
| `missing uuid`                                         | `GC025`            |
| `invalid customerSessionId value was sent`             | `GC025`            |
| `invalid value was sent in the customerSpecific field` | `GC025`            |
| `invalid customerSpecific field was sent`              | `GC025`            |
| `invalid value was sent in the customerSpecific field` | `GC025`            |
| `invalid brand value was sent`                         | `GC025`            |
| `empty request`                                        | `GC025`            |

<Info>
  For a complete list of Grand Central error codes and their descriptions, see [Status codes, errors, and responses](/connectors/reference/error-codes).
</Info>