Conversion tracking with Google Tag Manager

The Lemrock Pixel shows which Lemrock ads lead to sales on your site, so Lemrock can report your results and deliver more toward buyers. With Google Tag Manager (GTM), the install is configuration only: no code on your site. You need your pixel ID. It looks like lr_px_ followed by 22 characters. Your Lemrock contact gives it to you.

The four events

Lemrock tracks four events. Send all four.

Event	When it happens
Order created	a visitor places an order
Checkout started	a visitor starts checkout
Items added	a visitor adds an item to the cart
Contents viewed	a visitor views a product

1. Import the template

Download the template: gtm-template.tpl.
In GTM, go to Templates > Tag Templates > New.
Open the overflow menu (⋮), choose Import, pick the file and save.

2. Load the pixel on every page

Create a tag:

Field	Value
Tag type	Lemrock Pixel
Pixel ID	your pixel ID
Send a measurement event when this tag fires	unchecked (checked by default)
Triggers	All Pages, and the event your consent tool sends when consent updates

The second trigger matters: without it, a visitor who accepts cookies after landing loses their ad click.

3. Add one tag per event

Create one Lemrock Pixel tag per event. For an order:

Field	Value
Tag type	Lemrock Pixel
Pixel ID	your pixel ID
Send a measurement event when this tag fires	checked
Event	Order created
Event ID	your order number
Amount format	Currency units or Cents (see below)
Amount	the order total
Currency	the currency code, such as `EUR`. Required with Amount
Contents	one row per item, with the same product IDs as your catalog feed
Trigger	the moment the order is completed

Repeat for the other three events, changing Event and the trigger. Then publish the container.

Fill the fields from your data layer with Data Layer Variables. If your data layer lacks the order number, total or currency, add them.
Event ID makes an order count once, even if it’s reported twice. Use the order number.
Amount format applies to Amount and to each Contents amount:
- Currency units (default): 25.99 for €25.99, as most data layers hold prices. Use a dot, not a comma.
- Cents: 2599 for €25.99.
- An amount that doesn’t match the format sends nothing and prints a console warning. For currencies without cents, such as JPY, choose Cents and enter the price as is.

4. Add user data (recommended)

Hashed email and phone let Lemrock match a sale when the visitor comes back on another device or browser. Open the User data section of your Lemrock tags and fill Email SHA-256 and Phone SHA-256, usually from Data Layer Variables. Leave a field blank if you don’t have the value. Send hashes only, never the raw values. Lemrock refuses anything that isn’t a SHA-256 hash.

Normalize:
- Email: trim spaces, lowercase. Jane.Doe@Example.com → jane.doe@example.com.
- Phone: digits only, starting with the country code, no + or leading zeroes. +33 6 12 34 56 78 → 33612345678.
Hash with SHA-256 and send 64 lowercase hex characters. jane.doe@example.com → 86e0b9e56c17cc4d12387e1949b85053fbe73bc3ce5a1188713a9d300cc6133d.

The template has no consent field. Set consent on all Lemrock tags at once: in Tags, tick every Lemrock tag, click the consent (shield) icon, and require:

ad_storage, always.
ad_user_data too, if you send user data (step 4).

6. Check your setup

Open GTM Preview. Debug mode turns on automatically. Pixel messages start with [Lemrock Pixel] in the browser console.
Simulate an ad click. Start Preview on any page with ?lrclid=lr_clk_0000000000000000000000 added, then accept your cookie banner. The console confirms the click token is stored.

Send a test event from the console. It’s checked but not recorded:

lemrock(
  "measure",
  "order_created",
  { type: "contents" },
  { event_id: "test-1", validate_only: true },
);

You should see order_created test-1 sent (validate_only) → 202.

Place a test order and check the same line appears without (validate_only).

If something is wrong:

Read the console. Setup mistakes always print a warning, even outside Preview.
Make sure your redirects keep lrclid in the URL.

Your Lemrock contact can confirm events are arriving. Send them your pixel ID and the time of your test.

Get started

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