The event registration API is used to manage event registrants. Learn more about Event Management.
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openapi: 3.2.0
info:
title: REST API for Oracle Eloqua Marketing Cloud Service…
description: The Oracle Eloqua Marketing Cloud Service REST APIs enable you to extend the functionality of the product, build Apps, and perform high volume data transfers.
version: 2026.08.07
x-summary: The Oracle Eloqua Marketing Cloud Service REST APIs enable you to extend the functionality of the product, build Apps, and perform high volume data transfers.
tags:
- name: Application/2.0/Event registrants
description: 'The event registration API is used to manage event registrants.
Learn more about Event Management.'
paths:
/api/rest/2.0/data/eventRegistration/{parentId}/instance:
post:
operationId: CreateIndividualPOSTRest20
parameters:
- name: parentId
in: path
description: Id of the parent event.
required: true
schema:
type: integer
summary: Create an event registrant
description: Creates an event registrant that matches the criteria specified by the request body for the event specified by the parentId parameter.
responses:
'201':
description: Success.
content:
application/json:
schema:
$ref: '#/components/schemas/EventRegistrationDataRest20'
'400':
description: Bad request. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'401':
description: Unauthorized. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'403':
description: Forbidden. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'404':
description: The requested resource was not found. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'500':
description: The service has encountered an error. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
tags:
- Application/2.0/Event registrants
x-internal-id: api-rest-2.0-data-eventRegistration-{parentId}-instance-post
x-filename-id: api-rest-2.0-data-eventregistration-parentid-instance-post
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/EventRegistrationDataRest20'
description: The request body defines the details of the event registrant to be created.
required: true
/api/rest/2.0/data/eventRegistration/{parentId}/instance/{id}:
get:
operationId: ReadIndividualGETRest20
parameters:
- name: parentId
in: path
description: Id of the parent event.
required: true
schema:
type: integer
- name: id
in: path
description: Id of the event registrant.
required: true
schema:
type: integer
- name: depth
in: query
description: This parameter is not used for this endpoint.
required: false
schema:
type: string
summary: Retrieve an event registrant
description: Retrieves the registrant for the event specified by the parentId and id parameters.
responses:
'200':
description: OK.
content:
application/json:
schema:
$ref: '#/components/schemas/EventRegistrationDataRest20'
'400':
description: Bad request. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'401':
description: Unauthorized. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'403':
description: Forbidden. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'404':
description: The requested resource was not found. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'500':
description: The service has encountered an error. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
tags:
- Application/2.0/Event registrants
x-internal-id: api-rest-2.0-data-eventRegistration-{parentId}-instance-{id}-get
x-filename-id: api-rest-2.0-data-eventregistration-parentid-instance-id-get
put:
operationId: UpdateIndividualPUTRest20
parameters:
- name: parentId
in: path
description: Id of the parent event.
required: true
schema:
type: integer
- name: id
in: path
description: Id of the event registrant.
required: true
schema:
type: integer
summary: Update an event registrant
description: Updates an event registrant that matches the criteria specified by the request body for the event specified by the parentId parameter. The response will only include field values that have been updated in the request. The response will also only include contactId if it has been updated in the request.
responses:
'200':
description: OK.
content:
application/json:
schema:
$ref: '#/components/schemas/EventRegistrationDataRest20'
'400':
description: Bad request. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'401':
description: Unauthorized. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'403':
description: Forbidden. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'404':
description: The requested resource was not found. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'500':
description: The service has encountered an error. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
tags:
- Application/2.0/Event registrants
x-internal-id: api-rest-2.0-data-eventRegistration-{parentId}-instance-{id}-put
x-filename-id: api-rest-2.0-data-eventregistration-parentid-instance-id-put
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/EventRegistrationDataRest20'
description: 'The request body defines the details of the event registrant to be updated. Note: Only <code>fieldValues</code> and <code>contactId</code> can be updated. <code>fieldValues</code> is required, even if not updating any fields. To update <code>contactId</code>, include <code>fieldValues</code> with an empty array.'
required: true
delete:
operationId: DeleteIndividualDELETERest20
parameters:
- name: parentId
in: path
description: Id of the parent event.
required: true
schema:
type: integer
- name: id
in: path
description: Id of the event registrant.
required: true
schema:
type: integer
summary: Delete an event registrant
description: Deletes registrant for the event specified by the parentId and id parameters
responses:
'200':
description: OK.
'400':
description: Bad request. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'401':
description: Unauthorized. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'403':
description: Forbidden. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'404':
description: The requested resource was not found. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'500':
description: The service has encountered an error. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
tags:
- Application/2.0/Event registrants
x-internal-id: api-rest-2.0-data-eventRegistration-{parentId}-instance-{id}-delete
x-filename-id: api-rest-2.0-data-eventregistration-parentid-instance-id-delete
/api/rest/2.0/data/eventRegistration/{parentId}/instances:
get:
operationId: SearchGETRest20
parameters:
- name: parentId
in: path
description: Id of the parent event.
required: true
schema:
type: integer
- name: depth
in: query
description: This parameter is not used for this endpoint.
required: false
schema:
type: string
- name: count
in: query
description: Maximum number of entities to return. Must be less than or equal to 1000 and greater than or equal to 1.
required: false
schema:
type: integer
- name: page
in: query
description: Specifies which page of event registrant to return (the count parameter defines the number of event registrant assets per page). If the page parameter is not supplied, 1 will be used by default.
required: false
schema:
type: integer
- name: search
in: query
description: Specifies the search criteria used to retrieve entities. See the <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=SearchParam'>tutorial</a> for information about using this parameter.
required: false
schema:
type: string
- name: orderBy
in: query
description: Specifies the field by which list results are ordered.
required: false
schema:
type: string
summary: Retrieve a list of event registrants
description: Retrieves the registrants (records) for an event specified by the parentId that match the criteria specified by the query parameters.
responses:
'200':
description: OK.
content:
application/json:
schema:
$ref: '#/components/schemas/QueryResultEventRegistrationDataRest20'
'400':
description: Bad request. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'401':
description: Unauthorized. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'403':
description: Forbidden. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'404':
description: The requested resource was not found. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
'500':
description: The service has encountered an error. See <a href='https://docs.oracle.com/cloud/latest/marketingcs_gs/OMCAB/index.html#CSHID=HTTPStatusCodes'>Status Codes</a> for information about other possible HTTP status codes.
tags:
- Application/2.0/Event registrants
x-internal-id: api-rest-2.0-data-eventRegistration-{parentId}-instances-get
x-filename-id: api-rest-2.0-data-eventregistration-parentid-instances-get
components:
schemas:
FieldValueRest20:
title: FieldValue
properties:
type:
type: string
description: The asset's type in Eloqua. This is a read-only property.
value:
type: string
description: The value to set the corresponding field id to. Date values must be submitted as a unix timestamp.
id:
type: string
readOnly: true
description: The id of the field to be set to the corresponding value.
name:
type: string
description: Name of the field value.
QueryResultEventRegistrationDataRest20:
title: QueryResultEventRegistrationData
properties:
type:
type: string
description: 'The asset''s type in Eloqua. '
elements:
type: array
description: Array of event field elements.
items:
$ref: '#/components/schemas/EventRegistrationDataRest20'
total:
type: integer
description: The total amount of results.
pageSize:
type: integer
description: The page size.
page:
type: integer
description: The specified page.
EventRegistrationDataRest20:
title: EventRegistrationData
properties:
type:
type: string
description: 'The asset''s type in Eloqua. This is a read-only property. '
id:
type: string
readOnly: true
description: Id of the event registrant. This is a read-only property.
currentStatus:
type: string
description: This property is not used for event registrants.
name:
type: string
description: The name of the event registrant. This is a read-only property.
description:
type: string
description: This property is not used for event registrants.
permissions:
type: array
description: This property is not used for event registrants.
items:
type: string
folderId:
type: string
readOnly: true
description: This property is not used for event registrants.
sourceTemplateId:
type: string
description: This property is not used for event registrants.
createdBy:
type: string
readOnly: true
description: This property is not used for event registrants.
createdByName:
type: string
description: This property is not used for event registrants.
createdAt:
type: string
readOnly: true
description: The date and time the event registrant was created, expressed in Unix time. This is a read-only property.
updatedBy:
type: string
readOnly: true
description: This property is not used for event registrants.
updatedByName:
type: string
description: This property is not used for event registrants.
updatedAt:
type: string
readOnly: true
description: Unix timestamp for the date and time the event registrant was last updated. This is a read-only property.
scheduledFor:
type: string
readOnly: true
description: This property is not used for event registrants.
depth:
type: string
readOnly: true
description: This property is not used for event registrants.
contactId:
type: string
description: The contact record Id associated to this event registrant. Use the desired contact's id as the value for this parameter.
accountId:
type: string
description: The account record Id associated to this event registrant. This is a read-only property.
uniqueCode:
type: string
description: The unique value associated to the event registrant. This is a read-only property.
customObjectRecordStatus:
type: string
description: The status of the event registrant. Only returned when creating or updating an event registrant. This is a read-only property.
fieldValues:
type: array
description: Array containing <code>type</code>, <code>id</code>, and <code>value</code> for all of the fields associated with a given event registrant.
items:
$ref: '#/components/schemas/FieldValueRest20'
isMapped:
type: string
description: Whether or not the event registrant is mapped to a contact or account. This is a read-only property.