Restore a deleted sponsor

POST/v1/event/{eventId}/sponsors/{sponsorId}/restore

US Region: https://public-api.sessionboard.com · EU Region: https://public-api-eu.sessionboard.com

Restore a previously soft-deleted sponsor. Requires the write:sponsors scope.

Restore has the same reach as the delete it reverses: it restores the group, so a group that held both roles comes back as both a sponsor and an exhibitor, and it reappears on every event it was linked to — not only the event in the path.

Request example

curl --request POST \
  --url 'https://public-api.sessionboard.com/v1/event/{eventId}/sponsors/{sponsorId}/restore' \
  --header 'x-access-token: <api-token>'

const response = await fetch('https://public-api.sessionboard.com/v1/event/{eventId}/sponsors/{sponsorId}/restore', {
  method: 'POST',
  headers: {
    "x-access-token": "<api-token>"
  },
});

const data = await response.json();
console.log(data);

import requests

response = requests.request(
    "POST",
    "https://public-api.sessionboard.com/v1/event/{eventId}/sponsors/{sponsorId}/restore",
    headers={
        "x-access-token": "<api-token>"
    },
)

print(response.json())

<?php

$curl = curl_init();

curl_setopt_array($curl, [
    CURLOPT_URL => "https://public-api.sessionboard.com/v1/event/{eventId}/sponsors/{sponsorId}/restore",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => "POST",
    CURLOPT_HTTPHEADER => [
        "x-access-token: <api-token>",
    ],
]);

$response = curl_exec($curl);
curl_close($curl);

echo $response;

package main

import (
  "fmt"
  "io"
  "net/http"
)

func main() {
  req, _ := http.NewRequest("POST", "https://public-api.sessionboard.com/v1/event/{eventId}/sponsors/{sponsorId}/restore", nil)
  req.Header.Add("x-access-token", "<api-token>")

  res, _ := http.DefaultClient.Do(req)
  defer res.Body.Close()
  body, _ := io.ReadAll(res.Body)

  fmt.Println(string(body))
}

HttpRequest request = HttpRequest.newBuilder()
    .uri(URI.create("https://public-api.sessionboard.com/v1/event/{eventId}/sponsors/{sponsorId}/restore"))
    .header("x-access-token", "<api-token>")
    .method("POST", HttpRequest.BodyPublishers.noBody())
    .build();

HttpResponse<String> response = HttpClient.newHttpClient()
    .send(request, HttpResponse.BodyHandlers.ofString());

System.out.println(response.body());

Try it

Response headers

Authorizations

x-access-tokenstringheader
Organization API token. Generate from Organization Settings → API Tokens.
AuthorizationBearer <token>headeror
OAuth 2.1 access token. Obtained via the OAuth PKCE flow at /oauth/token.

Send one of these. See Authentication.

Path parameters

eventIdintegerpathrequired
The event ID.
sponsorIdstringpathrequired
The sponsor ID.

Responses

200`application/json`

Sponsor restored

A sponsor associated with an event.

idstring
friendly_idstring
friendly_id_rawinteger
namestring
descriptionstring
logo_image_urlstring
banner_image_urlstring
phonestring
address_line_1string
address_line_2string
address_citystring
address_statestring
address_postal_codestring
address_coutnrystring
Country (note: field name contains a known typo preserved for backwards compatibility).
facebook_urlstring
instagram_urlstring
linkedin_urlstring
snapchat_usernamestring
tiktok_usernamestring
twitter_urlstring
website_urlstring
created_atstring
updated_atstring<date-time>
When the sponsor last changed, from any source, including Public API creates, updates and bulk writes. Send it back as updated_at on an update for optimistic concurrency; the write returns the new value.
custom_fieldsCustomFieldValue[]
Show child attributes
- idstring
- namestring
- valuestring | boolean | null
  The formatted field value, or null when the field is empty. Numeric field types (number, currency, percent, quantity, formula) serialize a stored zero as its formatted value (for example "0") — null means the field has no value, not that the value is zero.
  
  checkbox fields serialize as the strings "Yes" (checked) and "No" (explicitly unchecked); a checkbox that was never set is null. Writes take boolean true / false.
  
  datetime fields serialize as ISO 8601. On event custom fields (GET /v1/events?expand=custom_fields) the value is event-local time with the event's UTC offset (for example 2026-08-15T09:00:00-03:00), falling back to the raw UTC instant (2026-08-15T12:00:00.000Z) when the event has no valid timezone. On session, speaker, sponsor, and exhibitor custom fields the value is the raw UTC instant.
  
  date (date-only) fields serialize as M-DD-YYYY: month without a leading zero, day with one, four-digit year (for example 9-22-2026 for 22 September 2026, 3-04-2026 for 4 March 2026). This is not ISO 8601; parse it with that exact pattern.
- typestring
- internal_namestring
- created_atstring
translated_fieldsTranslatedField[]
Show child attributes
- idstring
- namestring
- typestring
- parent_field_idstring
- parent_field_sourcestring
- parent_field_namestring
- parent_field_internal_namestring
- translated_languagestring
- valuestring
contactsAccountContact[]
Show child attributes
- idstring
- friendly_idstring
- friendly_id_rawinteger
- full_namestring
- first_namestring
- last_namestring
- emailstring
- photo_urlstring
  URL of the contact's headshot. Images larger than 2 MB are delivered resized from this URL, scaled to fit within 2400 x 2400 pixels (a PNG may arrive as WebP for clients that accept it). The uploaded file is stored unchanged; for full-resolution originals use the bulk download tools in Sessionboard, such as Download Headshots (Contacts, More menu).
- company_namestring
- titlestring
- aboutstring
- is_primaryboolean
- contact_created_atstring
- contact_updated_atstring
- relationship_created_atstring
- relationship_updated_atstring
admin_urlstring<uri> | null
Deep link to this entity in the Sessionboard admin UI.

400

The sponsor is not deleted, so there is nothing to restore. Restore is not idempotent — check before retrying.

401

Unauthorized

403

Missing write:sponsors scope

404

No sponsor with this id on this event. A record that exists but does not hold the sponsor role — a contact, or a group linked only as the other role — is also a 404 here; look it up on the endpoint for the role it holds.

Response examples

{
  "id": "b2c3d4e5-f6a7-8901-bcde-f12345678901",
  "friendly_id": "SPON-3",
  "friendly_id_raw": 3,
  "name": "TechCorp Global",
  "description": "Platinum sponsor and technology partner.",
  "logo_image_url": "https://cdn.sessionboard.com/logos/techcorp.png",
  "phone": "+1-555-0100",
  "address_city": "San Francisco",
  "address_state": "CA",
  "address_coutnry": "US",
  "website_url": "https://www.techcorp.example.com",
  "linkedin_url": "https://www.linkedin.com/company/techcorp",
  "created_at": "2024-01-05T08:00:00Z",
  "updated_at": "2024-02-20T12:00:00Z",
  "custom_fields": [],
  "translated_fields": [],
  "contacts": []
}