> ## 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

> API operations and error mappings for the SurePay Connector

The SurePay integration verifies payee details before a payment completes, so account holders can confirm they are paying the intended beneficiary through the SurePay Verification of Payee (VoP) service. For setup steps, see [Get started](/connectors/payments/surepay/get-started).

## Supported operations

The SurePay connector supports the following operation.

### Verify payment beneficiary details

* Ensure that the beneficiary details provided by the end user (or saved in their contact for VoP only) are accurate before completing a payment.

## Events

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

## Error mapping

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

| SurePay VoP code                 | Grand Central code |
| :------------------------------- | :----------------- |
| `CLIENT_INVALID`                 | `GC002`            |
| `CERTIFICATE ITEMS`              | `GC025`            |
| `CLIENT_INCONSISTENT`            | `GC025`            |
| `DUPLICATED_FIELD`               | `GC025`            |
| `INVALID_FIELD`                  | `GC025`            |
| `INVALID_HEADER`                 | `GC025`            |
| `INVALID_REQUEST`                | `GC025`            |
| `MANDATORY_HEADER_NOT_PROVIDED`  | `GC025`            |
| `MANDATORY_FIELD_NOT_PROVIDED`   | `GC025`            |
| `MUTUALLY_EXCLUSIVE_FIELDS_USED` | `GC025`            |
| `NAME_TOO_LONG`                  | `GC025`            |
| `TIMESTAMP_INVALID`              | `GC025`            |
| `INTERNAL SERVER ERROR`          | `GC027`            |

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

| SurePay CoP code        | Grand Central code |
| :---------------------- | :----------------- |
| `NO_VALID_TOKEN`        | `GC002`            |
| `UNAUTHORIZED_CLIENT`   | `GC002`            |
| `INVALID_VALUE`         | `GC024`            |
| `INVALID_COP_RESPONSE`  | `GC025`            |
| `MISSING_VALUE`         | `GC025`            |
| `GENERIC_ERROR`         | `GC027`            |
| `INTERNAL_SERVER_ERROR` | `GC027`            |
| `TIMEOUT`               | `GC063`            |

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