Profit Feed Tool

In this guide, you will learn how to set up the Profit Feed Tool, so your conversion tags report the profit of an order instead of its revenue.

The Profit Feed Tool reads a product feed that contains cost price, regular price and VAT per product. When a purchase event reaches your server container, the tool looks up every item in the order, calculates the margin and returns the profit for that order as a single variable. You can then use that variable as the conversion value in Google Ads, Meta and, optionally, GA4.

Because the lookup happens entirely in the server container, cost prices and margins never reach the browser. The main practical difference with a client-side setup is that your margin data stays in your own infrastructure, while the ad platforms still receive a value they can bid on.

If you already maintain a product feed in Channable or a comparable feed tool, this is the fastest route to profit-based measurement. It reuses the feed you have, instead of requiring a separate database.
Prerequisites
  • A TAGGRS account with a configured server container.
  • A feed tool such as Channable, with your shop system as the source.
  • Cost price filled in per product in your shop system.
  • A purchase event that reaches the server container, including item data.
  • Google Ads and/or Meta conversion tags configured in the server container.
The feed can only calculate margin on the products that actually carry a cost price, so start at the source.
  • Use Shopify as the source via Channable or another feed tool.
  • Check that products have a cost price filled in inside Shopify.
Products without a cost price will either be skipped or return a profit of 0. It is worth exporting a quick list of products with an empty cost price before you continue, so you know in advance which part of your assortment will not be measured.
Add at least these fields:
  • Product ID
  • Cost price
  • Regular price
  • VAT
For VAT:
  • Set this to 0 manually for now if it isn't available yet.
Keep the feed limited to these fields. The tool does not use titles, images or descriptions, and a smaller feed syncs faster and is easier to debug.
The feed and the events sent to the advertising channels must speak about products in the same way.
  • Check which ID is used in the advertising channels.
  • In this example, the shopping feed works with a numeric ID, with SKU as the secondary identifier.
  • Make sure the Channable or other feed tool uses the same ID as Google Ads/Analytics.
Shopify exposes several identifiers (product ID, variant ID, SKU), and shopping feeds often use a different one than the data layer. Decide which identifier is leading, then align the feed to it.
  • Open the JSON feed and check that the fields are populated.
  • Pay particular attention to Product ID, Cost price and Regular price.
Open the feed URL directly in your browser and inspect a handful of products, including a variant product and a discounted product. An empty or null cost price at this stage will surface later as a profit of 0 in your conversions.
  • Go to Integrations in TAGGRS.
  • Add the feed URL there.
  • Secure the feed with a password.
  • Use that same password later in Tag Manager.
The password prevents your cost prices from being publicly accessible at the feed URL. Store it somewhere you can retrieve it, because you need the exact same value when you configure the variable in step 7.
  • Open the server container.
  • Go to Variable Templates.
  • Import the template provided.
Create a new variable in the server container:
  • Name: for example, profit feed.
  • Product ID field: TAGGRS container identifier.
  • Item ID: link this to the product ID you also use in your feed.
  • API secure field: the password of the feed.
  • Check in preview/debug which item_id is being sent.
  • Make sure this matches the ID in the profit feed.
Run a test purchase in preview mode and compare the item_id in the incoming event with the product ID in the feed, character for character.

A mismatch will return no margin, which is harder to spot than a broken tag.
  • The output of the variable is the profit per order.
  • Use that value in Google Ads conversions, Meta and, optionally, in GA4.
Set the variable as the conversion value parameter in the tags concerned. From that point on, the value the platform optimizes towards is margin, not turnover.
Open the feed integration in TAGGRS to check its configuration status.

Here, you can see:
  • Whether the feed is configured.
  • How many products have been synced.
  • When the feed was last updated.
If the product count is lower than expected or the last update is old, the feed or mapping need your attention.
DOCUMENTATION V1.4
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