| Field | Type | Description |
| actualAddress | String (optional) | The client's physical, or street address |
postalAddress | String (optional) | The client's postal address |
notes | String (optional) | Notes on the client |
workPhone | String (optional) | The client's work phone number |
workFax | String (optional) | The client's work fax number |
workEmail | String (optional) | The client's work email address |
mobilePhone | String (optional) | The client's mobile phone number |

| Field | Type | Description |
| success | Boolean | True, if the client was successfully updated, false otherwise |
| errorMessage | String (optional) | True, if the client was successfully updated, false otherwise |
| clientId | Integer | The client id updated by successful call |

| HTTP Status Code | Type |
| 400 | No Content (no records match the search) |
| 403 | Forbidden (invalid Authorisation) |
| 404 | Dealer not found or Order not found (error will be detailed in response) |
| 503 | Service Unavailable (due to maintenance) |