---
title: POST /events
slug: content-marketing-platform/api/post-events
docTags:
createdAt: 2026-10-01T18:51:26.265Z
---
{
"id": "DPj-R9yz-rUv6vfXmrk6_",
"type": "api-oas-v2",
"data": {
"method": "POST",
"url": "https://api.cmp.optimizely.com/v3/events",
"servers": [
{
"url": "https://api.cmp.optimizely.com/v3/events",
"description": "v3 version of Optimizely CMP Open API"
}
],
"name": "POST /events",
"description": "Experimental Create an event.
",
"contentType": "application/json",
"request": {
"pathParameters": [],
"headerParameters": [
{
"name": "accept",
"type": "string",
"kind": "optional",
"description": "Generated from available response content types",
"enum": [
"application/json"
],
"default": "application/json"
}
],
"queryParameters": [],
"bodyDataParameters": [
{
"kind": "required",
"name": "body",
"type": "object",
"description": "Payload to create a new event",
"customType": "EventCreateRequest",
"schema": [
{
"name": "title",
"kind": "required",
"type": "string",
"description": "Title of the event",
"example": "The awesome event"
},
{
"name": "description",
"kind": "optional",
"type": "string",
"description": "Description of the event",
"example": "This awesome event is created to celebrate our clients"
},
{
"name": "campaign_id",
"kind": "optional",
"type": "string",
"description": "ID of the campaign under which the event is to be created",
"example": "8p7f91i55722y04188a30cee6612"
},
{
"name": "is_all_day",
"kind": "required",
"type": "boolean",
"description": "Indicate if the event is all day long",
"example": false
},
{
"name": "start_date",
"kind": "required",
"type": "string",
"description": "Start date and time of the event in ISO 8601 format: YYYY-MM-DDTHH:MM:SSZ
",
"example": "1996-09-09T12:18:00Z",
"format": "date-time"
},
{
"name": "end_date",
"kind": "required",
"type": "string",
"description": "End date and time of the event in ISO 8601 format: YYYY-MM-DDTHH:MM:SSZ
",
"example": "2024-12-24T12:18:00Z",
"format": "date-time"
},
{
"name": "fields",
"kind": "optional",
"type": "object",
"description": "List of fields to be associated with the event",
"modelRef": "#/components/schemas/AssetTypeObjectField",
"customType": "AssetTypeObjectField[]",
"schema": [],
"complexType": "allOf",
"complexItems": [
{
"name": "BaseObjectField",
"description": "",
"modelRef": "#/components/schemas/BaseObjectField",
"schema": [
{
"name": "type",
"kind": "required",
"type": "string",
"description": "Type of the field",
"example": "checkbox"
},
{
"name": "values",
"kind": "required",
"type": "array",
"description": "Values for the campaign field",
"example": "",
"itemType": "undefined",
"customType": "undefined[]",
"itemExample": "",
"itemDefault": ""
},
{
"name": "id",
"kind": "required",
"type": "string",
"description": "Unique identifier of the field",
"example": "41aac313bda1e40b6cde7116fc24a"
}
]
},
{
"name": "AssetTypeObjectFieldUpdatePayload",
"description": "",
"modelRef": "#/components/schemas/AssetTypeObjectFieldUpdatePayload",
"schema": [
{
"name": "type",
"kind": "required",
"type": "string",
"description": "Type of the field",
"example": "checkbox"
},
{
"name": "values",
"kind": "required",
"type": "array",
"description": "Payload for fields with attachments",
"example": "",
"itemType": "undefined",
"customType": "undefined[]",
"itemExample": "",
"itemDefault": ""
}
]
}
]
}
],
"modelRef": "#/components/schemas/EventCreateRequest",
"isExpanded": true
}
],
"formDataParameters": [],
"oAuthParameters": [
{
"id": "OAuth2",
"name": "OAuth2",
"kind": "optional",
"type": "oauth2",
"oauth2Flows": {
"clientCredentials": {
"tokenUrl": "https://accounts.cmp.optimizely.com/o/oauth2/v1/token",
"scopes": {}
},
"authorizationCode": {
"authorizationUrl": "https://accounts.cmp.optimizely.com/o/oauth2/v1/auth",
"tokenUrl": "https://accounts.cmp.optimizely.com/o/oauth2/v1/token",
"scopes": {
"openid": "Grants the ability to receive a unique identifier for the user.",
"profile": "Grants access to user profile information.",
"offline_access": "Grants the ability to refresh access_token using the refresh token even when user is not present (not logged in)."
}
}
},
"requiredScopes": [
"openid",
"profile",
"offline_access"
]
}
],
"cookieParameters": []
},
"responses": [
{
"statusCode": "201",
"description": "Created event details",
"jsonExample": "",
"isExpanded": true,
"schema": [
{
"kind": "optional",
"type": "object",
"description": "",
"customType": "EventResponse",
"schema": [
{
"name": "id",
"kind": "required",
"type": "string",
"description": "Unique identifier of the event",
"example": "674ea40a7a9cac80ff78c95c"
},
{
"name": "title",
"kind": "required",
"type": "string",
"description": "Title of the event",
"example": "The awesome event"
},
{
"name": "description",
"kind": "required",
"type": "string",
"nullable": true,
"description": "Description of the event",
"example": "The awesome event's description"
},
{
"name": "campaign_id",
"kind": "required",
"type": "string",
"nullable": true,
"description": "Unique identifier of the campaign associated with the event",
"example": "66d953340019d7b86833ac6dg"
},
{
"name": "start_date",
"kind": "required",
"type": "string",
"description": "Start date of the event in ISO 8601 UTC format",
"example": "2024-11-26T11:00:34Z"
},
{
"name": "end_date",
"kind": "required",
"type": "string",
"description": "End date of the event in ISO 8601 UTC format",
"example": "2024-11-26T11:30:34Z"
},
{
"name": "is_all_day",
"kind": "required",
"type": "boolean",
"description": "Whether the event is a day long event or not",
"example": false
},
{
"name": "is_archived",
"kind": "required",
"type": "boolean",
"description": "Whether the event is archived or not",
"example": false
},
{
"name": "created_by",
"kind": "required",
"type": "string",
"description": "Unique identifier of the user who created the event",
"example": "66d837c62373533177b59db3"
},
{
"name": "reference_id",
"kind": "required",
"type": "string",
"description": "Reference ID of the event",
"example": "EVT-3"
},
{
"name": "links",
"kind": "required",
"type": "object",
"description": "Meta links",
"example": "",
"schema": [
{
"name": "self",
"kind": "required",
"type": "string",
"description": "URL of the event",
"example": "https://api.cmp.optimizely.com/v3/events/674ea40a7a9cac80ff78c95c"
},
{
"name": "campaign",
"kind": "required",
"type": "string",
"nullable": true,
"description": "URL of the campaign associated with the event",
"example": "https://api.cmp.optimizely.com/v3/campaigns/66d953340019d7b86833ac6d"
}
]
}
],
"modelRef": "#/components/schemas/EventResponse",
"isExpanded": true
}
]
},
{
"statusCode": "400",
"description": "Client error",
"jsonExample": "",
"isExpanded": true,
"schema": [
{
"kind": "optional",
"type": "object",
"example": "{\"message\":\"Unsupported arguments: a,b,c\"}",
"description": "Error payload",
"customType": "Error",
"schema": [
{
"name": "message",
"kind": "required",
"type": "string",
"description": "Message describing the error",
"example": "Not found"
},
{
"name": "errors",
"kind": "optional",
"type": "map",
"description": "Additional information",
"example": "",
"customType": "map",
"schema": []
}
],
"modelRef": "#/components/schemas/Error",
"isExpanded": true
}
]
},
{
"statusCode": "401",
"description": "Authorization error",
"jsonExample": "",
"isExpanded": true,
"schema": [
{
"kind": "optional",
"type": "object",
"example": "{\"message\":\"Unauthorized\"}",
"description": "Error payload",
"customType": "Error",
"schema": [
{
"name": "message",
"kind": "required",
"type": "string",
"description": "Message describing the error",
"example": "Not found"
},
{
"name": "errors",
"kind": "optional",
"type": "map",
"description": "Additional information",
"example": "",
"customType": "map",
"schema": []
}
],
"modelRef": "#/components/schemas/Error",
"isExpanded": true
}
]
},
{
"statusCode": "403",
"description": "Permission error",
"jsonExample": "",
"isExpanded": true,
"schema": [
{
"kind": "optional",
"type": "object",
"example": "{\"message\":\"You do not have the permission to perform this operation\"}",
"description": "Error payload",
"customType": "Error",
"schema": [
{
"name": "message",
"kind": "required",
"type": "string",
"description": "Message describing the error",
"example": "Not found"
},
{
"name": "errors",
"kind": "optional",
"type": "map",
"description": "Additional information",
"example": "",
"customType": "map",
"schema": []
}
],
"modelRef": "#/components/schemas/Error",
"isExpanded": true
}
]
},
{
"statusCode": "404",
"description": "Not found error",
"jsonExample": "",
"isExpanded": true,
"schema": [
{
"kind": "optional",
"type": "object",
"example": "{\"message\":\"Resource not found\"}",
"description": "Error payload",
"customType": "Error",
"schema": [
{
"name": "message",
"kind": "required",
"type": "string",
"description": "Message describing the error",
"example": "Not found"
},
{
"name": "errors",
"kind": "optional",
"type": "map",
"description": "Additional information",
"example": "",
"customType": "map",
"schema": []
}
],
"modelRef": "#/components/schemas/Error",
"isExpanded": true
}
]
},
{
"statusCode": "422",
"description": "Unprocessable entity error",
"jsonExample": "",
"isExpanded": true,
"schema": [
{
"kind": "optional",
"type": "object",
"example": "{\"message\":\"Resource cannot be processed\"}",
"description": "Error payload",
"customType": "Error",
"schema": [
{
"name": "message",
"kind": "required",
"type": "string",
"description": "Message describing the error",
"example": "Not found"
},
{
"name": "errors",
"kind": "optional",
"type": "map",
"description": "Additional information",
"example": "",
"customType": "map",
"schema": []
}
],
"modelRef": "#/components/schemas/Error",
"isExpanded": true
}
]
}
],
"hasXCodeSamples": false,
"examples": {
"languages": [
{
"id": "A3m0esmtus5rhgy6iornG",
"language": "curl",
"label": "cURL",
"code": "curl --request POST \\\n --url https://api.cmp.optimizely.com/v3/events \\\n --header 'accept: application/json' \\\n --header 'content-type: application/json' \\\n --data '{\n \"title\": \"The awesome event\",\n \"is_all_day\": false,\n \"start_date\": \"1996-09-09T12:18:00Z\",\n \"end_date\": \"2024-12-24T12:18:00Z\",\n \"fields\": {\n \"type\": \"checkbox\",\n \"values\": [],\n \"id\": \"41aac313bda1e40b6cde7116fc24a\"\n }\n }'"
},
{
"id": "nfMTrpwenaleXdLMI13xJ",
"language": "javascript",
"label": "javascript",
"code": "var myHeaders = new Headers();\nmyHeaders.append(\"accept\", \"application/json\");\nmyHeaders.append(\"content-type\", \"application/json\");\n\nvar raw = JSON.stringify({\n \"title\": \"The awesome event\",\n \"is_all_day\": false,\n \"start_date\": \"1996-09-09T12:18:00Z\",\n \"end_date\": \"2024-12-24T12:18:00Z\",\n \"fields\": {\n \"type\": \"checkbox\",\n \"values\": [],\n \"id\": \"41aac313bda1e40b6cde7116fc24a\"\n }\n});\n\nvar requestOptions = {\n method: 'POST',\n headers: myHeaders,\n body: raw,\n redirect: 'follow'\n};\n\nfetch(\"https://api.cmp.optimizely.com/v3/events\", requestOptions)\n .then(response => response.text())\n .then(result => console.log(result))\n .catch(error => console.log('error', error));"
},
{
"id": "imwE9Pnn-Y3rmQMgex74P",
"language": "ruby",
"label": "Ruby",
"code": "require \"uri\"\nrequire \"json\"\nrequire \"net/http\"\n\nurl = URI(\"https://api.cmp.optimizely.com/v3/events\")\n\nhttps = Net::HTTP.new(url.host, url.port)\nhttps.use_ssl = true\n\nrequest = Net::HTTP::Post.new(url)\nrequest[\"accept\"] = \"application/json\"\nrequest[\"content-type\"] = \"application/json\"\nrequest.body = JSON.dump({\n \"title\": \"The awesome event\",\n \"is_all_day\": false,\n \"start_date\": \"1996-09-09T12:18:00Z\",\n \"end_date\": \"2024-12-24T12:18:00Z\",\n \"fields\": {\n \"type\": \"checkbox\",\n \"values\": [],\n \"id\": \"41aac313bda1e40b6cde7116fc24a\"\n }\n})\n\nresponse = https.request(request)\nputs response.read_body\n"
},
{
"id": "KJUL0qfdfssCqtA6xiliJ",
"language": "python",
"label": "Python",
"code": "import requests\nimport json\n\nurl = \"https://api.cmp.optimizely.com/v3/events\"\n\npayload = json.dumps({\n \"title\": \"The awesome event\",\n \"is_all_day\": False,\n \"start_date\": \"1996-09-09T12:18:00Z\",\n \"end_date\": \"2024-12-24T12:18:00Z\",\n \"fields\": {\n \"type\": \"checkbox\",\n \"values\": [],\n \"id\": \"41aac313bda1e40b6cde7116fc24a\"\n }\n})\nheaders = {\n 'accept': 'application/json',\n 'content-type': 'application/json'\n}\n\nresponse = requests.request(\"POST\", url, headers=headers, data=payload)\n\nprint(response.text)\n"
}
],
"selectedLanguageId": "A3m0esmtus5rhgy6iornG"
},
"results": {
"languages": [
{
"id": "response-0-201",
"language": "201",
"code": "// Created event details\n{\n \"id\": \"674ea40a7a9cac80ff78c95c\",\n \"title\": \"The awesome event\",\n \"description\": \"The awesome event's description\",\n \"campaign_id\": \"66d953340019d7b86833ac6dg\",\n \"start_date\": \"2024-11-26T11:00:34Z\",\n \"end_date\": \"2024-11-26T11:30:34Z\",\n \"is_all_day\": false,\n \"is_archived\": false,\n \"created_by\": \"66d837c62373533177b59db3\",\n \"reference_id\": \"EVT-3\",\n \"links\": {\n \"self\": \"https://api.cmp.optimizely.com/v3/events/674ea40a7a9cac80ff78c95c\",\n \"campaign\": \"https://api.cmp.optimizely.com/v3/campaigns/66d953340019d7b86833ac6d\"\n }\n}"
},
{
"id": "response-1-400",
"language": "400",
"code": "// Client error\n{\n \"message\": \"Not found\",\n \"errors\": \"\"\n}"
},
{
"id": "response-2-401",
"language": "401",
"code": "// Authorization error\n{\n \"message\": \"Not found\",\n \"errors\": \"\"\n}"
},
{
"id": "response-3-403",
"language": "403",
"code": "// Permission error\n{\n \"message\": \"Not found\",\n \"errors\": \"\"\n}"
},
{
"id": "response-4-404",
"language": "404",
"code": "// Not found error\n{\n \"message\": \"Not found\",\n \"errors\": \"\"\n}"
},
{
"id": "response-5-422",
"language": "422",
"code": "// Unprocessable entity error\n{\n \"message\": \"Not found\",\n \"errors\": \"\"\n}"
}
],
"selectedLanguageId": "response-0-201"
}
},
"children": [
{
"text": ""
}
]
}