{"id":1492,"date":"2025-08-29T13:10:00","date_gmt":"2025-08-29T11:10:00","guid":{"rendered":"https:\/\/nilsrooijmans.com\/daily\/?p=1492"},"modified":"2025-12-19T12:29:04","modified_gmt":"2025-12-19T11:29:04","slug":"conversions-with-cart-data-my-preferred-setup","status":"publish","type":"post","link":"https:\/\/nilsrooijmans.com\/daily\/conversions-with-cart-data-my-preferred-setup","title":{"rendered":"conversions with cart data \u2014 my preferred setup"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">If you\u2019ve recently seen the warning \u201cConversions with cart data need attention,\u201d you\u2019re not alone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Google recently added this check to the conversion diagnostics tab. A good thing, if you ask me.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"340\" src=\"https:\/\/nilsrooijmans.com\/daily\/wp-content\/uploads\/2025\/12\/image-7-1024x340.png\" alt=\"\" class=\"wp-image-1493\" srcset=\"https:\/\/nilsrooijmans.com\/daily\/wp-content\/uploads\/2025\/12\/image-7-1024x340.png 1024w, https:\/\/nilsrooijmans.com\/daily\/wp-content\/uploads\/2025\/12\/image-7-300x100.png 300w, https:\/\/nilsrooijmans.com\/daily\/wp-content\/uploads\/2025\/12\/image-7-768x255.png 768w, https:\/\/nilsrooijmans.com\/daily\/wp-content\/uploads\/2025\/12\/image-7-1200x399.png 1200w, https:\/\/nilsrooijmans.com\/daily\/wp-content\/uploads\/2025\/12\/image-7.png 1429w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you do not know what &#8216;conversions with cart data&#8217; entails, read this: <a href=\"https:\/\/support.google.com\/google-ads\/answer\/9028254\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/support.google.com\/google-ads\/answer\/9028254<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here\u2019s my preferred way to set it up properly:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. Add product-level sales data to the dataLayer on the order confirmation page.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here&#8217;s an example:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>window.dataLayer.push({\n       event: \"purchase\",\n       transaction_id: \"20250829_002\",\n       value: 16.20,\n       items: &#91;\n         {\n           id: \"123abc\"\n           item_id: \"123abc\",\n           item_name: \"World\u2019s Smallest Speedo\",\n           item_category: \"Apparel\",\n           item_category2: \"My Favorite Swimwear\",\n           coupon: \"LOOK-AMAZING\",\n           discount: 2.20,\n           price: 9.20,\n           quantity: 2\n         }\n       ]\n      });<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Note how I&#8217;ve added both the &#8216;id&#8217; and &#8216;item_id&#8217; to the items in the &#8216;items&#8217; array.\u00a0This is because for GA4 or Firebase as a conversion source, you need &#8216;item_id&#8217; \u2014 and when using Google Ads as the conversion source, you need to use &#8216;id&#8217;.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Make sure the ID value matches the product IDs in your merchant center.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. Use Google Tag Manager with Google Ads Conversion Tracking tag template to send the data on the purchase event.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. Add cost_of_goods_sold attribute in your GMC product feed to allow for profit tracking.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That&#8217;s it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#8211; Nils<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you\u2019ve recently seen the warning \u201cConversions with cart data need attention,\u201d you\u2019re not alone. Google recently added this check to the conversion diagnostics tab. A good thing, if you ask me. If you do not know what &#8216;conversions with cart data&#8217; entails, read this: https:\/\/support.google.com\/google-ads\/answer\/9028254 Here\u2019s my preferred way to set it up properly: &hellip; <a href=\"https:\/\/nilsrooijmans.com\/daily\/conversions-with-cart-data-my-preferred-setup\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;conversions with cart data \u2014 my preferred setup&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1492","post","type-post","status-publish","format-standard","hentry","category-google-ads"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>conversions with cart data \u2014 my preferred setup - Nils Rooijmans<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nilsrooijmans.com\/daily\/conversions-with-cart-data-my-preferred-setup\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"conversions with cart data \u2014 my preferred setup - Nils Rooijmans\" \/>\n<meta property=\"og:description\" content=\"If you\u2019ve recently seen the warning \u201cConversions with cart data need attention,\u201d you\u2019re not alone. Google recently added this check to the conversion diagnostics tab. A good thing, if you ask me. If you do not know what &#8216;conversions with cart data&#8217; entails, read this: https:\/\/support.google.com\/google-ads\/answer\/9028254 Here\u2019s my preferred way to set it up properly: &hellip; Continue reading &quot;conversions with cart data \u2014 my preferred setup&quot;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nilsrooijmans.com\/daily\/conversions-with-cart-data-my-preferred-setup\" \/>\n<meta property=\"og:site_name\" content=\"Nils Rooijmans\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-29T11:10:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-19T11:29:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/nilsrooijmans.com\/daily\/wp-content\/uploads\/2025\/12\/image-7-1024x340.png\" \/>\n<meta name=\"author\" content=\"Nils Rooijmans\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nils Rooijmans\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/nilsrooijmans.com\/daily\/conversions-with-cart-data-my-preferred-setup#article\",\"isPartOf\":{\"@id\":\"https:\/\/nilsrooijmans.com\/daily\/conversions-with-cart-data-my-preferred-setup\"},\"author\":{\"name\":\"Nils Rooijmans\",\"@id\":\"https:\/\/nilsrooijmans.com\/daily\/#\/schema\/person\/645ba0bda90c1467f9d23d332d1f3aa0\"},\"headline\":\"conversions with cart data \u2014 my preferred setup\",\"datePublished\":\"2025-08-29T11:10:00+00:00\",\"dateModified\":\"2025-12-19T11:29:04+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/nilsrooijmans.com\/daily\/conversions-with-cart-data-my-preferred-setup\"},\"wordCount\":186,\"publisher\":{\"@id\":\"https:\/\/nilsrooijmans.com\/daily\/#\/schema\/person\/645ba0bda90c1467f9d23d332d1f3aa0\"},\"image\":{\"@id\":\"https:\/\/nilsrooijmans.com\/daily\/conversions-with-cart-data-my-preferred-setup#primaryimage\"},\"thumbnailUrl\":\"https:\/\/nilsrooijmans.com\/daily\/wp-content\/uploads\/2025\/12\/image-7-1024x340.png\",\"articleSection\":[\"Google Ads\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/nilsrooijmans.com\/daily\/conversions-with-cart-data-my-preferred-setup\",\"url\":\"https:\/\/nilsrooijmans.com\/daily\/conversions-with-cart-data-my-preferred-setup\",\"name\":\"conversions with cart data \u2014 my preferred setup - 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