Google Tag Manager - CrowdChange API

When you connect a Google Tag Manager container, CrowdChange pushes structured events to the GTM dataLayer as donors browse and transact. You can use these events to trigger tags and forward conversions to your marketing and analytics tools. All events include a context property indicating the source:

Value	Description
`platform`	Event fired from the main CrowdChange platform
`embed`	Event fired from an embedded donation form

General Events

Pageview / URL changes

Triggered on every page change.

{
  context: 'platform',
  event: 'Pageview',
  pagePath: 'https://demo.crowdchange.co/10001',
  pageLanguage: 'en', // possible values: en, fr
  previousPagePath: 'https://demo.crowdchange.co'
}

User Authentication

There are two ways this event can be fired:

When user actually signs into the website through Sign In workflow. In this case the event is set to login
When user loads (or re-loads) the page and is already signed in from the previous session. In this case the event is set to auth

{
  context: 'platform',
  event: 'login', // possible events: login, auth
  page_language: 'en', // possible values: en, fr
  user_id: 1
}

Log Out

Triggered when user manually logs out.

{
  context: 'platform',
  event: 'logout',
  page_language: 'en',
  user_id: 1
}

Fundraisers

Triggered when user shares a fundraiser, or a team, or a personal page. Could be shared from Participant Center, directly from Fundraiser / Page / Team, or from Thank You page after a successful transaction.

{
  context: 'platform',
  event: 'share',
  page_language: 'en',
  fundraiser_id: 1,
  fundraiser_team_id: 1, // team id (if team is shared, or shared page belongs to the team)
  fundraiser_page_id: 1, // personal page id (if page is shared)
  is_fundraiser_owner: false, // boolean indicating if user owns the fundraiser
  is_team_owner: false, // boolean indicating if user owns the team
  is_page_owner: false // boolean indicating if user owns the shared page
}

Teams

Edit

Triggered when user saves changes to their team.

{
  context: 'platform',
  event: 'team:edit',
  page_language: 'en',
  fundraiser_id: 1,
  fundraiser_team_id: 1,
  edit_types: ['name', 'amount_goal'] // array of edits. Possible values: image, image-fr, description, video, amount_goal, name, has_translation, slug
}

Delete

Triggered when user deletes their team.

{
  context: 'platform',
  event: 'team:delete',
  page_language: 'en',
  fundraiser_id: 1,
  fundraiser_team_id: 1
}

Personal Pages

Edit

Triggered when user saves changes to their personal page.

{
  context: 'platform',
  event: 'page:edit',
  page_language: 'en',
  fundraiser_id: 1,
  fundraiser_team_id: 1,
  fundraiser_page_id: 1,
  edit_types: ['name', 'team'] // array of edits. Possible values: image, image-fr, team, description, video, amount_goal, name, has_translation, slug, is_amount_raised_shown, site_cause_id
}

Delete

Triggered when user deletes their personal page.

{
  context: 'platform',
  event: 'personal-page:delete',
  fundraiser_id: 1,
  fundraiser_team_id: 1,
  fundraiser_page_id: 1
}

Mailing List

Preview

Triggered when user clicks “Preview” before sending mailing list email.

{
  context: 'platform',
  event: 'mailing-list:preview',
  page_language: 'en',
  fundraiser_id: 1,
  fundraiser_team_id: 1,
  fundraiser_page_id: 1
}

Send

Triggered when user clicks “Send” from mailing list.

{
  context: 'platform',
  event: 'mailing-list:send',
  page_language: 'en',
  fundraiser_id: 1,
  fundraiser_team_id: 1,
  fundraiser_page_id: 1,
  n_contacts: 10 // total number of contacts email will be sent to
}

Participant Center

Personal Page’s Dashboard

Triggered when user loads Dashboard page for their Personal Page.

{
  context: 'platform',
  event: 'participant-center:page:dashboard',
  page_language: 'en',
  fundraiser_id: 1,
  fundraiser_team_id: 1,
  fundraiser_page_id: 1,
  is_team_captain: false,
  fundraiser_name: 'Toronto Walk',
  fundraiser_team_name: 'Best Toronto Team',
  fundraiser_page_name: 'Smith Family Page'
}

Team’s Dashboard

Triggered when user loads Dashboard page for their Team.

{
  context: 'platform',
  event: 'participant-center:team:dashboard',
  page_language: 'en',
  fundraiser_id: 1,
  fundraiser_team_id: 1,
  is_team_captain: true,
  fundraiser_name: 'Toronto Walk',
  fundraiser_team_name: 'Best Toronto Team'
}

Transactions

Transaction Completed

Note: items will depend on enabled features and fundraiser type.

{
  context: 'platform',
  event: 'purchase',
  pageLanguage: 'en', // possible values: en, fr
  ecommerce: {
    currencyCode: 'CAD',
    purchase: {
      transaction_id: 123456,
      fundraiser_id: 10001,
      fundraiser_name: 'Demo Event',
      organization_id: 201,
      organization_name: 'Ontario',
      organization_code: 'ONT',
      revenue: 650.99,
      coupon: 'DISCOUNT-123',
      breakdown: {
        amount_covered_fee: 5,
        amount_donation: 100,
        amount_apparel: 49.49,
        amount_ticket: 25.50,
        amount_registration: 50,
        amount_sponsor: 500,
        amount_cards: 20,
        frequency: 'once' // possible values: once, month, year
      },
      items: [
        { item_id: 'donation',     item_name: 'Donation',        item_price: 100,   frequency: 'once' },
        { item_id: 'cards',        item_name: 'eCards',          item_price: 20 },
        { item_id: 'apparel',      item_name: 'Apparel / Items', item_price: 49.49 },
        { item_id: 'ticket',       item_name: 'Tickets',         item_price: 25.50 },
        { item_id: 'registration', item_name: 'Registration',    item_price: 50 },
        { item_id: 'sponsor',      item_name: 'Sponsorship',     item_price: 500 },
        { item_id: 'covered_fee',  item_name: 'Covered Fee',     item_price: 5 }
      ]
    }
  }
}

Reference: See Google’s Enhanced Ecommerce for Tag Manager for more details.

Tag Type Restrictions

For security, the platform enforces a GTM tag type allowlist and blocklist on every page load. This restricts which tag types your GTM container is permitted to fire, regardless of what is configured in your container.

Status	Tag types
Allowed	`google` — Google tags (GA4, Google Ads, Floodlight, etc.)
Allowed	`sandboxedScripts` — Sandboxed JavaScript templates
Allowed	`nonGooglePixels` — Non-Google pixel tags (image/iframe pixels, e.g. Facebook Pixel via pixel tag type)
Blocked	`nonGoogleScripts` — Custom HTML tags / arbitrary `<script>` injection

In practice this means:

Standard Google tags, GA4 configurations, and Google Ads conversion tags will fire normally
Facebook Pixel and similar third-party pixels loaded as pixel tag types will fire
Custom HTML tags (which allow arbitrary JavaScript) will not fire — use sandboxed JavaScript templates instead

For a full reference of which GTM tag types fall into each category, see the GTM tag type restriction guide.

​General Events

​Pageview / URL changes

​User Authentication

​Sign In

​Log Out

​Fundraisers

​Sharing

​Teams

​Edit

​Delete

​Personal Pages

​Edit

​Delete

​Mailing List

​Preview

​Send

​Participant Center

​Personal Page’s Dashboard

​Team’s Dashboard

​Transactions

​Transaction Completed

​Tag Type Restrictions

General Events

Pageview / URL changes

User Authentication

Sign In

Log Out

Fundraisers

Sharing

Teams

Edit

Delete

Personal Pages

Edit

Delete

Mailing List

Preview

Send

Participant Center

Personal Page’s Dashboard

Team’s Dashboard

Transactions

Transaction Completed

Tag Type Restrictions