Constant Contact Events API

openapi: 3.2.0
info:
  description: The Constant Contact, Inc. V3 public API, for building integrations with Constant Contact, the leading small-business email marketing platform.
  version: 3.0.178
  title: AppConnect V3 Events API
  contact:
    name: webservices@constantcontact.com
  license:
    name: Private
    url: https://www.constantcontact.com/legal/terms-of-use
servers:
- url: https://api.cc.email/v3
tags:
- name: Events
  description: Endpoints and methods used to create and manage events.
paths:
  /events:
    get:
      tags:
      - Events
      summary: GET a collection of events.
      description: Retrieve a collection of events with event details.
      operationId: findEvents
      parameters:
      - name: event_status
        in: query
        description: Use to return only events that meet the specified status. Acceptable values include `ACTIVE`,`DRAFT`, `COMPLETE`, `DELETED`,`CANCELLED`, and `ERROR`.
        required: false
        x-example: DRAFT
        schema:
          type: string
      - name: search_text
        in: query
        description: Use to return only events that include the specified text.
        required: false
        x-example: reunion
        schema:
          type: string
      - name: sort_by
        in: query
        description: 'Use to sort resulting events by one of the following properties: `name`, `start_time`, `end_time`, `created_time`, or `updated_time`.'
        required: false
        x-example: created_time
        schema:
          type: string
      - name: sort_order
        in: query
        description: Sort order for the `sort_by parameter`. Accepted values include `ASC` (ascending) or `DESC` (descending). Defaults to `ASC` if `sort_by` is provided.
        required: false
        x-example: DESC
        schema:
          type: string
      - name: limit
        in: query
        description: Limit the number of results to return per page. Default and maximum is `100`.
        required: false
        x-example: '5'
        schema:
          type: string
      - name: prev
        in: query
        description: Cursor for retrieving the previous page of results. This value is obtained from the `prev_cursor` field in a previous response.
        required: false
        x-example: 7zDEe3DhD5gUiwRFsvWKKZlZO1j6-YihH2hyVWD8GaW7JnzXbHFP8Tou212KoU20mOjvM6pdWwycDWC3X-Hb_xY-RK1eBwYp_pc4X2CvLxo.
        schema:
          type: string
      - name: next
        in: query
        description: Cursor for retrieving the next page of results. This value is obtained from the `next_cursor` field in a previous response.
        required: false
        x-example: 7zDEe3DhD5gUiwRFsvWKKZlZO1j6-YihH2hyVWD8GaW7JnzXbHFP8Tou212KoU20mOjvM6pdWwycDWC3X-Hb_xY-RK1eBwYp_pc4X2CvLxo
        schema:
          type: string
      responses:
        '200':
          description: Request Successful
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PaginationDtoEventListingDto'
        '400':
          description: Bad request. Either the JSON was malformed or there was a data validation error.
        '401':
          description: The Access Token used is invalid.
        '403':
          description: Forbidden request. You lack the necessary scopes, you lack the necessary user privileges, or the application is deactivated.
        '404':
          description: The requested resource was not found.
        '500':
          description: There was a problem with our internal service.
        '503':
          description: Our internal service is temporarily unavailable.
      security:
      - oauth2_implicit:
        - campaign_data
      - oauth2_access_code:
        - campaign_data
      x-authorization-privileges:
      - campaign:read
  /events/default:
    post:
      tags:
      - Events
      summary: POST (create) a new event.
      description: Creates a new event with default settings, registration form, and landing page. The event will be created in DRAFT status.
      operationId: addDefaultEvent
      parameters:
      - name: name
        in: query
        description: Name for the new event. If not provided, a default name will be generated.
        required: false
        x-example: My Event
        schema:
          type: string
      - name: start_time
        in: query
        description: Event start time in ISO 8601 format. If not provided, defaults to a future date.
        required: false
        x-example: '2024-01-15T10:00:00Z'
        schema:
          type: string
      - name: end_time
        in: query
        description: Event end time in ISO 8601 format. If not provided, defaults to one hour after start time.
        required: false
        x-example: '2024-01-15T18:00:00Z'
        schema:
          type: string
      - name: placeholder_campaign_id
        in: query
        description: Placeholder campaign ID for the event.
        required: false
        x-example: campaign-123
        schema:
          type: string
      responses:
        '201':
          description: Event created successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EventDto'
        '400':
          description: Bad request. Either the JSON was malformed or there was a data validation error.
        '401':
          description: The Access Token used is invalid.
        '403':
          description: Forbidden request. You lack the necessary scopes, you lack the necessary user privileges, or the application is deactivated.
        '500':
          description: There was a problem with our internal service.
      security:
      - oauth2_implicit:
        - campaign_data
      - oauth2_access_code:
        - campaign_data
      x-authorization-privileges:
      - campaign:write
      x-sdk-methodName: createEvent
  /events/{event_id}:
    get:
      tags:
      - Events
      summary: GET details for a single event.
      description: Specify the `event_id` path parameter to retrieve the event's details.
      operationId: getEvent_2
      parameters:
      - name: event_id
        in: path
        description: The ID that uniquely identifies the event.
        required: true
        x-example: 1697732a-8664-4675-8415-c4aabaa17dae
        schema:
          type: string
      - name: include
        in: query
        description: Use to include (`true`) or exclude (`false`) event setting properties in the results.
        required: false
        x-example: true
        schema:
          type: boolean
      responses:
        '200':
          description: Request Successful
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EventDto'
        '400':
          description: Bad request. Either the JSON was malformed or there was a data validation error.
        '401':
          description: The Access Token used is invalid.
        '403':
          description: Forbidden request. You lack the necessary scopes, you lack the necessary user privileges, or the application is deactivated.
        '404':
          description: The requested resource was not found.
        '500':
          description: There was a problem with our internal service.
        '503':
          description: Our internal service is temporarily unavailable.
      security:
      - oauth2_implicit:
        - campaign_data
      - oauth2_access_code:
        - campaign_data
      x-authorization-privileges:
      - campaign:read
    patch:
      tags:
      - Events
      summary: PATCH (update) an event.
      description: Partially updates an event with the provided fields. Only the specified fields will be updated. This endpoint only works for events in DRAFT or ACTIVE status. Events in COMPLETE, CANCELED, or DELETED status cannot be updated.
      operationId: patchEvent
      parameters:
      - name: event_id
        in: path
        description: The ID that uniquely identifies the event to update.
        required: true
        x-example: 1697732a-8664-4675-8415-c4aabaa17dae
        schema:
          type: string
      responses:
        '204':
          description: Event updated successfully
        '400':
          description: Bad request. Either the JSON was malformed or there was a data validation error.
        '401':
          description: The Access Token used is invalid.
        '403':
          description: Forbidden request. You lack the necessary scopes, you lack the necessary user privileges, or the application is deactivated.
        '404':
          description: The requested resource was not found.
        '500':
          description: There was a problem with our internal service.
      security:
      - oauth2_implicit:
        - campaign_data
      - oauth2_access_code:
        - campaign_data
      x-authorization-privileges:
      - campaign:write
      x-sdk-methodName: updateEvent
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/EventDto'
        description: A JSON request body containing the event fields to update.
        required: true
  /events/{event_id}/copy:
    post:
      tags:
      - Events
      summary: POST (copy) an existing event.
      description: Creates a deep copy of an existing event with all its settings, registration forms, and landing pages. The copied event is created in DRAFT status. Events in DRAFT, ACTIVE, COMPLETE, or CANCELED status can be copied. DELETED events cannot be copied.
      operationId: copyEvent
      parameters:
      - name: event_id
        in: path
        description: The ID of the event to copy.
        required: true
        x-example: 1697732a-8664-4675-8415-c4aabaa17dae
        schema:
          type: string
      responses:
        '200':
          description: Event copied successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EventDto'
        '207':
          description: Event copied with some failures
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EventDto'
        '400':
          description: Bad request. Either the JSON was malformed or there was a data validation error.
        '401':
          description: The Access Token used is invalid.
        '403':
          description: Forbidden request. You lack the necessary scopes, you lack the necessary user privileges, or the application is deactivated.
        '404':
          description: The requested resource was not found.
        '500':
          description: There was a problem with our internal service.
      security:
      - oauth2_implicit:
        - campaign_data
      - oauth2_access_code:
        - campaign_data
      x-authorization-privileges:
      - campaign:write
      x-sdk-methodName: copyEvent
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/EventCopyRequestDto'
        description: A JSON request body containing the copy options.
        required: true
  /events/{event_id}/check_in/tickets:
    post:
      tags:
      - Events
      summary: Check in event tickets.
      description: Use this endpoint to mark one or more tickets as checked in. The event must be in `ACTIVE` or `COMPLETE` status. Tickets with `CANCELLED` status cannot be checked in (returns HTTP 400).
      operationId: checkInTickets
      parameters:
      - name: event_id
        in: path
        description: The ID that uniquely identifies the event.
        required: true
        x-example: 07216444-4e3b-41ea-a3b8-5a418fce41f4
        schema:
          type: string
      responses:
        '204':
          description: Successfully checked in order tickets.
        '400':
          description: Bad request. Either the JSON was malformed or there was a data validation error.
        '401':
          description: The Access Token used is invalid.
        '403':
          description: Forbidden request. You lack the necessary scopes, you lack the necessary user privileges, or the application is deactivated.
        '404':
          description: The requested resource was not found.
        '500':
          description: There was a problem with our internal service.
      security:
      - oauth2_implicit:
        - campaign_data
      - oauth2_access_code:
        - campaign_data
      x-authorization-privileges:
      - campaign:write
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/OrderTicketKeysRequestDto'
        description: Set of order ticket keys to mark as checked in.
        required: true
  /events/{event_id}/undo_check_in/tickets:
    post:
      tags:
      - Events
      summary: Undo event ticket check-in.
      description: Use this endpoint to undo check-in for one or more tickets, marking them as not checked in. The event must be in `ACTIVE` or `COMPLETE` status.
      operationId: undoCheckInTickets
      parameters:
      - name: event_id
        in: path
        description: The ID that uniquely identifies the event.
        required: true
        x-example: 07216444-4e3b-41ea-a3b8-5a418fce41f4
        schema:
          type: string
      responses:
        '204':
          description: Successfully undone check-in for order tickets.
        '400':
          description: Bad request. Either the JSON was malformed or there was a data validation error.
        '401':
          description: The Access Token used is invalid.
        '403':
          description: Forbidden request. You lack the necessary scopes, you lack the necessary user privileges, or the application is deactivated.
        '404':
          description: The requested resource was not found.
        '500':
          description: There was a problem with our internal service.
      security:
      - oauth2_implicit:
        - campaign_data
      - oauth2_access_code:
        - campaign_data
      x-authorization-privileges:
      - campaign:write
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/OrderTicketKeysRequestDto'
        description: Set of order ticket keys to mark as not checked in.
        required: true
  /events/{event_id}/tracks/{track_id}/registrations/{registration_id}:
    get:
      tags:
      - Events
      summary: Get registration details for an event.
      description: Use the `event_id`, `registration_id`, and `track_id` path parameters to get registration details.
      operationId: getRegistrationInfo
      parameters:
      - name: event_id
        in: path
        description: The ID that uniquely identifies the event.
        required: true
        x-example: 1697732a-8664-4675-8415-c4aabaa17dae
        schema:
          type: string
      - name: track_id
        in: path
        description: The track key that uniquely identifies the event track.
        required: true
        x-example: s8zabc
        schema:
          type: string
      - name: registration_id
        in: path
        description: The ID that uniquely identifies the registration.
        required: true
        x-example: a1b2c3d4-e5f6-7890-abcd-ef1234567890
        schema:
          type: string
      responses:
        '200':
          description: Request Successful
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DetailedRegistrationDto'
        '400':
          description: Bad request. Either the JSON was malformed or there was a data validation error.
        '401':
          description: The Access Token used is invalid.
        '403':
          description: Forbidden request. You lack the necessary scopes, you lack the necessary user privileges, or the application is deactivated.
        '404':
          description: The requested resource was not found.
        '500':
          description: There was a problem with our internal service.
        '503':
          description: Our internal service is temporarily unavailable.
      security:
      - oauth2_implicit:
        - campaign_data
      - oauth2_access_code:
        - campaign_data
      x-authorization-privileges:
      - campaign:read
  /events/{event_id}/tracks/{track_id}/registrations:
    get:
      tags:
      - Events
      summary: Get a list of registrations for an event.
      description: Use the `event_id` and `track_id` path parameters to get a list of registrations for an event. Use optional query parameters to limit the number of results returned per page, the sort order, or to filter results by specific criteria; such as registration `status`.
      operationId: findRegistrationsUsingGET
      parameters:
      - name: event_id
        in: path
        description: The ID that uniquely identifies the event.
        required: true
        x-example: 1697732a-8664-4675-8415-c4aabaa17dae
        schema:
          type: string
      - name: track_id
        in: path
        description: The track ID that uniquely identifies the event track.
        required: true
        x-example: s8zabc
        schema:
          type: string
      - name: registration_status
        in: query
        description: Filter registration results by status.
        required: false
        x-example: REGISTERED
        schema:
          type: string
          enum:
          - PENDING
          - REGISTERED
          - CANCELED
          - EXPIRED
          - IN_PROGRESS, FAILED
      - name: payment_status
        in: query
        description: Filter registration results by payment status.
        required: false
        x-example: PAID
        schema:
          type: string
          enum:
          - PENDING
          - PAID
          - REFUNDED
          - CANCELLED
          - FAILED
          - CHARGED_BACK
      - name: search_text
        in: query
        description: Filter registration results by first name, last name, or email address.
        required: false
        x-example: john.doe@example.com
        schema:
          type: string
      - name: sort_by
        in: query
        description: Specify the field to use to sort the results.
        required: false
        x-example: email_address
        schema:
          type: string
          enum:
          - first_name
          - last_name
          - email_address
          - registration_status
          - payment_status
          - tickets
          - total
      - name: sort_order
        in: query
        description: Use to specify how you want the results sorted.
        required: false
        x-example: ASC
        schema:
          type: string
          enum:
          - ASC
          - DESC
      - name: page_size
        in: query
        description: Alternative to the <code>limit</code> parameter to limit the number of results returned per page. If specifying both the <code>limit</code> and <code>page_size</code> query parameters, they must be the same value.
        required: false
        x-example: '50'
        schema:
          type: string
      - name: limit
        in: query
        description: Limit the number of results returned per page. If specifying both the <code>limit</code> and <code>page_size</code> query parameters, they must be the same value.
        required: false
        x-example: '50'
        schema:
          type: string
      - name: prev
        in: query
        description: Cursor for pagination used to get the previous page of results (mutually exclusive with <code>next</code>).
        required: false
        x-example: bSzsyWkkq95R44vIFEpY62gr8_xSeRXsEQkhnhltPgiT
        schema:
          type: string
      - name: next
        in: query
        description: Cursor for pagination used to get the next page of results (mutually exclusive with <code>prev</code>).
        required: false
        x-example: cTk9xLmmr06S55wJGfQ73hs9_yTfSYtFRlimimQhjUj
        schema:
          type: string
      responses:
        '200':
          description: Successfully retrieved registrations
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PaginatedRegistrations'
        '400':
          description: Bad request. Either the JSON was malformed or there was a data validation error.
        '404':
          description: The requested resource was not found.
        '500':
          description: There was a problem with our internal service.
      security:
      - oauth2_implicit:
        - campaign_data
      - oauth2_access_code:
        - campaign_data
      x-authorization-privileges:
      - campaign:read
    put:
      tags:
      - Events
      summary: Update status for event registrations.
      description: Use this endpoint to update the registration status for one or more registrations within an event track.
      operationId: updateRegistrationStatusUsingPUT
      parameters:
      - name: event_id
        in: path
        description: The ID that uniquely identifies the event.
        required: true
        x-example: 07216444-4e3b-41ea-a3b8-5a418fce41f4
        schema:
          type: string
      - name: track_id
        in: path
        description: The track key that uniquely identifies the event track.
        required: true
        x-example: gqz1gb
        schema:
          type: string
      - name: increase_count
        in: query
        description: Override count flag.
        required: false
        schema:
          type: boolean
      - name: increase_item_count
        in: query
        description: Override item count flag.
        required: false
        schema:
          type: boolean
      - name: return_items_to_inventory
        in: query
        description: Return items to inventory flag. Defaults to `true`.
        required: false
        schema:
          type: boolean
      responses:
        '200':
          description: Successfully updated registration status.
        '207':
          description: Some registrations failed to update.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RegistrationStatusUpdateResponseDto'
        '400':
          description: Bad request. Either the JSON was malformed or there was a data validation error.
        '401':
          description: The Access Token used is invalid.
        '403':
          description: Forbidden request. You lack the necessary scopes, you lack the necessary user privileges, or the application is deactivated.
        '404':
          description: The requested resource was not found.
        '500':
          description: There was a problem with our internal service.
      security:
      - oauth2_implicit:
        - campaign_data
      - oauth2_access_code:
        - campaign_data
      x-authorization-privileges:
      - campaign:write
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/RegistrationStatusUpdateRequestDto'
        description: Registration status update request data.
        required: true
  /events/{event_id}/tracks/{track_id}/registrations/payment_status:
    put:
      tags:
      - Events
      summary: Update payment status for event registrations.
      description: Use this endpoint to update the payment status for one or more registrations. This endpoint only processes registrations with a payment method (PAYPAL, WEPAY, STRIPE, DOOR, or CHECK). Free registrations without a payment method are silently excluded.
      operationId: updateRegistrationPaymentStatusUsingPUT
      parameters:
      - name: event_id
        in: path
        description: The ID that uniquely identifies the event.
        required: true
        x-example: c5da3665-88f9-4b15-82bc-cd6593c32537
        schema:
          type: string
      - name: track_id
        in: path
        description: The track key that uniquely identifies the event track.
        required: true
        x-example: 2unzqq
        schema:
          type: string
      responses:
        '200':
          description: Successfully updated payment status.
        '207':
          description: Some registrations failed to update.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RegistrationStatusUpdateResponseDto'
        '400':
          description: Bad request. Either the JSON was malformed or there was a data validation error.
        '401':
          description: The Access Token used is invalid.
        '403':
          description: Forbidden request. You lack the necessary scopes, you lack the necessary user privileges, or the application is deactivated.
        '404':
          description: The requested resource was not found.
        '500':
          description: There was a problem with our internal service.
      security:
      - oauth2_implicit:
        - campaign_data
      - oauth2_access_code:
        - campaign_data
      x-authorization-privileges:
      - campaign:write
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PaymentStatusUpdateRequestDto'
        description: Payment status update request data.
        required: true
components:
  schemas:
    RegistrantInformationLiteDto:
      type: object
      properties:
        checkedIn_tickets:
          type: integer
          format: int32
          example: 1
          description: The total number of tickets processed to check in for the event.
        checkin_status:
          type: string
          example: CHECKED_IN
          description: The status of the check-in.
        eligible_checkin_tickets:
          type: integer
          format: int32
          example: 2
          description: The current checkin status.
        email_address:
          type: string
          example: sarah_lang@mymail.com
          description: The email address associated with the registered event user.
        first_name:
          type: string
          example: sarah
          description: The first name of the person that registered for the event.
        last_name:
          type: string
          example: lang
          description: The last name of the person that registered for the event.
        new_contact:
          type: boolean
          example: true
          description: Set to <code>true</code> to indicate that the contact is new, otherwise set to <code>false</code>.
        payment_status:
          type: string
          example: PAID
          description: The current payment status for a registration.
        registration_id:
          type: string
          example: 3f1ceb43-f858-432e-b287-30a6d20d1250
          description: The ID that uniquely identifies a registration.
        registration_status:
          type: string
          example: <code>REGISTERED</code>
          description: 'The status of a registration. Acceptable values include: <code>PENDING</code>, <code>REGISTERED</code>, <code>CANCELED</code>, <code>EXPIRED</code>, <code>IN_PROGRESS</code>, <code>FAILED</code>.'
        registration_time:
          type: string
          format: date-time
          example: '2025-11-20T16:13:02.072Z'
          description: The time of event registration, in ISO format.
        tickets:
          type: integer
          format: int32
          example: 5
          description: Total number of tickets associated with a registration.
        total:
          type: number
          example: 100.0
          description: The total amount paid for a registration.
        track_key:
          type: string
          example: wfhmkz
          description: System generated string used to track a registration.
    TrackDto:
      type: object
      required:
      - campaign_activity_id
      properties:
        campaign_activity_id:
          type: string
          format: uuid
          example: 31bb0c22-1c72-4841-9d2c-8bd41ed526bc
          description: The campaign activity ID associated with the registration form.
          readOnly: true
        conf_email_campaign_activity_id:
          type: string
          format: uuid
          example: 31bb0c22-1c72-4841-9d2c-8bd41ed526bc
          description: The confirmation email campaign activity ID.
          readOnly: true
        create_time:
          type: string
          example: '2023-11-17T17:33:21.652Z'
          description: The event's create time.
          readOnly: true
        items_header:
          type: string
          example: Items
          description: items header
        last_update_time:
          type: string
          example: '2023-12-07T13:18:39.681Z'
          description: The event's last modification time.
          readOnly: true
        media_assets:
          type: array
          description: The list of media assets configured for the event.
          items:
            $ref: '#/components/schemas/EventMediaAssetDto'
        overall_ticket_capacity:
          type: integer
          format: int32
          example: 100
          description: The total overall ticket capacity.
        platform_fee_scope_type:
          type: string
          example: OWNER
          description: Specifies if the platform fee is passed to registrant or absorbed by the event host.
        promo_codes:
          type: array
          description: The list of <code>promo_codes</code> configured for the event.
          items:
            $ref: '#/components/schemas/PromoCodeDto'
        reg_manually_closed_flag:
          type: boolean
          example: true
          description: Closes registration to prevent further registrations.
        registration_end_time:
          type: string
          example: '2024-01-01T20:30:00Z'
          description: The date and time when registration should end. ISO format.
        registration_type:
          type: string
          example: TICKET
          description: The registration type for the event.
        restrict_to_single_ticket_flag:
          type: boolean
          example: true
          description: Restricts selection to a single ticket.
        tickets_header:
          type: string
          example: Tickets
          description: The header to use for tickets.
        track_id:
          type: string
          example: s8zabc
          description: The ticket <code>track id</code>.
          readOnly: true
        items:
          type: array
          readOnly: true
          items:
            $ref: '#/components/schemas/ItemDto'
      title: TrackDto
    SimpleFieldDto:
      type: object
      properties:
        display_order:
          type: integer
          format: int32
          example: 1
          description: 'If specified, determines the order in which to return a subset of contact''s details. For example, if you want a contact''s email address to display first, set the <code>display_order</code> to <code>1</code> within the <code>field_label</code>: <code>CONTACT_EMAIL_ADDRESS</code> details section.'
        field_label:
          type: string
          example: Email Address
          description: The label used to identify a field within each contact details section.
        field_name:
          type: string
          example: CONTACT_EMAIL_ADDRESS
          description: The formatted name used to identify a field within each contact details section.
        field_type:
          type: string
          example: TEXT
          description: Identifies the type of field. Acceptable values include; TEXT_AREA, DATE, SINGLE_SELECT,MULTI_SELECT, INFORMATIONAL, TERMS_CONDITIONS, ADDRESS, HEADER, DIVIDER, STATIC_TEXT.
        label_key:
          type: string
          example: registration.field.label.contact_email_address
          description: The label used to identify a contact's registration details.
        field_value:
          type: string
          example: john.doe@example.com
          description: The value of the field for this contact. For example, if the field is an email address, the field_value would contain the actual email address.
        choices:
          type: array
          example:
          - Option 1
          - Option 2
          - Option 3
          description: For SINGLE_SELECT and MULTI_SELECT field types, this array contains the available options the registrant can choose from.
          items:
            type: string
      description: An array of contact details.
    EventMetaDataDto:
      type: object
      properties

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# Full source: https://raw.githubusercontent.com/api-evangelist/constant-contact/refs/heads/main/openapi/constant-contact-events-api-openapi.yml