# Update an appointment

**PATCH /appointments/{id}**

Update an appointment by its ID


## Servers
- https://api.development.pexipengage.com/enterprises/acme: https://api.development.pexipengage.com/enterprises/acme ()


## Authentication methods
- O auth2


## Parameters
#### Headers
- **Authorization** (string)
  Bearer token used for authorization
- **X-Correlation-Id** (string)
  Unique identifier to allow referencing a particular transaction or event chain
- **Accept-Language** (string)
  Returns the requested resources translated according to the passed languages (see [translatable resources](../topic/topic-languages-translations\#topic-translatable-resources))

#### Path parameters
- **id** (string)
  Primary identifier of the requested resource


## Body parameters
Content-type: application/json

- **appointmentParticipants** (array[object] | null)
  
- **answers** (array[object] | null)
  
- **callbackRequestId** (string | null)
  
- **location** (object | null)
  
- **listingId** (string | null)
  
- **leadSegmentId** (string | null)
  
- **meetingRoomId** (string | null)
  
- **externalId** (string | null)
  
- **internalNotes** (string | null)
  
- **metadata** (object | null)
  
- **userCommunication** (object | null)
  

## Responses
### 200: Successful operation

#### Body Parameters: application/json (object)
- **data** (object)
  

### 404: Resource not found

#### Body Parameters: application/json (object)
- **errors** (array[object])
  

### 422: Business validation failed

* `ANSWER_SELECTED_OPTIONS_FOR_NON_SELECTION_TYPE`
* `ANSWER_VALUE_FOR_SELECTION_TYPE`
* `APPOINTMENT_LOCATION_REQUIRED`
* `APPOINTMENT_PARTICIPANTS_NOT_UNIQUE`
* `APPOINTMENT_PRIMARY_CUSTOMER_MISSING`
* `APPOINTMENT_PRIMARY_EMPLOYEE_MISSING`
* `APPOINTMENT_PRIMARY_PARTICIPANT_ADDED_OR_REMOVED`
* `LOCATION_GEOCODING_FAILED`
* `LOCATION_TIME_ZONE_RESOLUTION_FAILED`

See [Error codes](#topic-error-codes)

#### Body Parameters: application/json (object)
- **errors** (array[object])
  


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