Create Multiple Contacts

curl --request POST \
  --url https://api.useinvent.com/orgs/{org_id}/contacts/bulk \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "channels": [
    {
      "user_id": "<string>",
      "name": "<string>",
      "email": "<string>",
      "phone": "<string>",
      "contact_id": "<string>",
      "properties": {}
    }
  ],
  "segment_ids": [
    "<string>"
  ]
}
'

{
  "created_ids": [
    "<string>"
  ],
  "updated_ids": [
    "<string>"
  ]
}