How to update a participant's contact details

Use this guide when you need to update a participant's phone number and/or website URL.

Prerequisites

Your API key
The participant's internal id, external_id, or email

Request

Bash

curl -X POST "https://your-event-domain.com/api/v2/account/set" \
  -H "Authorization: Bearer your_api_key_here" \
  -F "event_id=7" \
  -F "id=12345" \
  -F "tel=+447911123456" \
  -F "website=https://acmecorp.com"

Response

JSON

{
  "code": 200,
  "errors": null,
  "data": {
    "id": 12345,
    "email": "john.doe@example.com",
    "status": "updated",
    "external_id": null,
    "info": ["Account match: id"],
    "errors": []
  },
  "response_id": "1700000000.12345"
}

Notes

Both tel and website accept any string value — no format validation is applied
Only include the fields you want to change; other fields will remain unchanged