Conversions

Track purchases, leads, signups, and other goal completions with monetary value.

Syntax

sealmetrics.conv(type, amount);
sealmetrics.conv(type, amount, properties);

Parameter	Type	Required	Description
type	string	Yes	Conversion name (e.g., 'purchase', 'lead', 'signup')
amount	number	Yes	Monetary value. Use 0 for non-monetary conversions
properties	object	No	Custom key-value data

Examples

Purchase

sealmetrics.conv('purchase', 99.99);

Purchase with Properties

sealmetrics.conv('purchase', 149.99, {
  order_id: 'ORD-2025-001234',
  currency: 'EUR',
  payment_method: 'credit_card',
  coupon: 'SAVE10'
});

Lead (No Monetary Value)

sealmetrics.conv('lead', 0, {
  form_name: 'contact_form',
  source: 'homepage'
});

Signup

sealmetrics.conv('signup', 0, {
  plan: 'trial',
  referral_code: 'FRIEND20'
});

Subscription Purchase

sealmetrics.conv('purchase', 49, {
  plan: 'pro_monthly',
  currency: 'USD',
  billing_cycle: 'monthly'
});

E-commerce Implementation

Thank You Page

Place on your order confirmation page:

<script src="https://t.sealmetrics.com/t.js?id=YOUR_ACCOUNT_ID&group=checkout" defer></script>
<script>
  // Wait for tracker to load
  window.addEventListener('load', function() {
    sealmetrics.conv('purchase', 189.99, {
      order_id: 'ORD-2025-001234',
      currency: 'EUR',
      items_count: '3',
      payment_method: 'credit_card'
    });
  });
</script>

Dynamic Values (Server-Side Rendering)

<script src="https://t.sealmetrics.com/t.js?id=YOUR_ACCOUNT_ID&group=checkout" defer></script>
<script>
  window.addEventListener('load', function() {
    sealmetrics.conv('purchase', <?php echo $order->total; ?>, {
      order_id: '<?php echo $order->id; ?>',
      currency: '<?php echo $order->currency; ?>'
    });
  });
</script>

WooCommerce

In functions.php or a custom plugin:

add_action('woocommerce_thankyou', function($order_id) {
  $order = wc_get_order($order_id);
  ?>
  <script>
    window.addEventListener('load', function() {
      sealmetrics.conv('purchase', <?php echo $order->get_total(); ?>, {
        order_id: '<?php echo $order_id; ?>',
        currency: '<?php echo $order->get_currency(); ?>',
        payment_method: '<?php echo $order->get_payment_method(); ?>'
      });
    });
  </script>
  <?php
});

Shopify

In your checkout.liquid or via Shopify Additional Scripts:

<script>
  window.addEventListener('load', function() {
    sealmetrics.conv('purchase', {{ checkout.total_price | money_without_currency | remove: ',' }}, {
      order_id: '{{ order.name }}',
      currency: '{{ checkout.currency }}'
    });
  });
</script>

SaaS Implementation

Free Trial Signup

document.querySelector('#signup-form').addEventListener('submit', function(e) {
  sealmetrics.conv('signup', 0, {
    plan: 'trial',
    source: 'pricing_page'
  });
});

Paid Subscription

// After successful payment
sealmetrics.conv('purchase', 49, {
  plan: 'pro',
  billing_cycle: 'monthly',
  currency: 'USD'
});

Plan Upgrade

sealmetrics.conv('upgrade', 99, {
  from_plan: 'starter',
  to_plan: 'pro',
  currency: 'USD'
});

Properties Reference

Common properties to include:

Property	Description	Example
order_id	Unique order identifier	'ORD-2025-001234'
currency	ISO 4217 currency code	'EUR', 'USD', 'GBP'
payment_method	Payment type	'credit_card', 'paypal', 'bank_transfer'
coupon	Discount code used	'SAVE10'
items_count	Number of items	'3'
plan	Subscription plan name	'pro', 'enterprise'
billing_cycle	Billing frequency	'monthly', 'yearly'

Property Values Must Be Strings

All property values are transmitted as strings. Numbers and booleans are automatically converted.

// Both work the same:
sealmetrics.conv('purchase', 99, { items_count: 3 });
sealmetrics.conv('purchase', 99, { items_count: '3' });

Timing

Conversions Count as Pageviews

Every conversion event also counts as a pageview. Do not call sealmetrics() separately on the same page.

Wait for Tracker to Load

If calling conversion immediately on page load, wait for the script:

window.addEventListener('load', function() {
  sealmetrics.conv('purchase', 99.99);
});

Or check if function exists:

if (typeof sealmetrics !== 'undefined') {
  sealmetrics.conv('purchase', 99.99);
}

Deduplication

Sealmetrics does not deduplicate conversions automatically. To prevent duplicate tracking:

1. Server-side flag: Mark orders as "tracked" in your database
2. One-time page: Redirect after conversion so refreshing doesn't re-trigger
3. Session check: Use your own session logic to track if conversion was already sent

Example with localStorage (client-side):

var orderId = 'ORD-2025-001234';
if (!localStorage.getItem('tracked_' + orderId)) {
  sealmetrics.conv('purchase', 99.99, { order_id: orderId });
  localStorage.setItem('tracked_' + orderId, 'true');
}

note

Sealmetrics does not use localStorage, but your deduplication logic can.