Google Tag Manager for WordPress – WordPress plugin

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Google Tag Manager (GTM) is Google’s free tool for everyone to manage and deploy analytics and marketing tags as well as other code snippets
using an intuitive web UI. To learn more about this tool, visit the official website.

This plugin places the GTM container code snippets onto your wordpress website so that you do not need to add this manually.
Multiple containers are also supported!

The plugin complements your GTM setup by pushing page meta data and user information into the so called data layer.
Google’s official help pages includes more details about the data layer.

You can also add your Google Optimize container with the recommended code setup

Some parts of the plugin require PHP 5.6 newer.
PHP 7.0 or newer is recommended.

Please note that PHP 5.6 is nearing its end of life cycle thus it is recommended to upgrade. If you are not sure which version you are using, please contact
your hosting provider for support.

GTM container code placement

The original GTM container code is divided into two parts: The first part is a javascript code snippet that is added to the <head>
section of every page of the website. This part is critical to enable all features of GTM, and this plugin helps to place this part
correctly on your site. The second part is an iframe snippet that acts as a failsafe/fallback should users’ JavaScript be disabled.
Google recommends – for best performance – to place this code snippet directly after the opening <body> tag on each page.
Albeit not ideal, it will work when placed lower in the code. This plugin provides a code placement option for the second code snippet.
Inherently, WordPress does not offer a straight-forward solution to achieve this, however Yaniv Friedensohn showed me a solution
that works with most themes without modification:

http://www.affectivia.com/blog/placing-the-google-tag-manager-in-wordpress-after-the-body-tag/

I added this solution to the plugin, currently as an experimental option.

Sites using the Genesis Framework should choose the “Custom” placement option. No theme modification is needed for this theme
however, the Google Tag Manager container code will be added automatically.

Basic data included

post/page titles
post/page dates
post/page category names
post/page tag names
post/page author ID and names
post/page ID
post types
post count on the current page + in the current category/tag/taxonomy
logged in status
logged in user role
logged in user ID (to track cross device behaviour in Google Analytics)
logged in user email address (to comply with GTM terms of service do not pass this on to Google tags)
site search data
site name and id (for WordPress multisite instances)

Browser / OS / Device data

(beta)

browser data (name, version, engine)
OS data (name, version)
device data (type, manufacturer, model)

Data is provided using the WhichBrowser library: http://whichbrowser.net/

Weather data

(beta)

Push data about users’ current weather conditions into the dataLayer. This can be used to generate weather-related
audience/remarketing lists on ad platforms and allows for user segmentation in your web analytics solutions:

weather category (clouds, rain, snow, etc.)
weather description: more detailed data
temperature in Celsius or Fahrenheit
air pressure
wind speed and degrees

Weather data is queried from Open Weather Map. Depending on your websites traffic, additional fees may apply:
http://openweathermap.org/price

An (free) API key from OpenWeatherMap is required for this feature to work.

ipstack.com is used to determine the site visitor’s location. A (free) API key from IPStack.com is required for this feature to work:
https://ipstack.com/product

Media player events

(experimental)

Track users’ interaction with any embedded media:

DataLayer events can be chosen to fire upon media player load, media is being played, paused/stopped and optionally when
the user reaches 10, 20, 30, …, 90, 100% of the media duration.

Tracking is supported for embedded media using the built-in oEmbed feature of WordPress as well as most other media plugins
and copy/pasted codes. Players injected into the website after page load are not currently supported.

Scroll tracking

Fire tags based on how the visitor scrolls from the top to the bottom of a page.
An example would be to separate “readers” (who spend a specified amount of time on a page) from “scrollers”
(who only scroll through within seconds). You can use these events to fire Analytics tags and/or remarketing/conversion tags
(for micro conversions).

Scroll tracking is based on the solution originally created by

Nick Mihailovski
Thomas Baekdal
Avinash Kaushik
Joost de Valk
Eivind Savio
Justin Cutroni

Original script:
http://cutroni.com/blog/2012/02/21/advanced-content-tracking-with-google-analytics-part-1/

Google Ads remarketing

Google Tag Manager for WordPress can add each dataLayer variable as a Google Ads remarketing custom parameter list.
This enables you to build sophisticated remarketing lists.

Blacklist & Whitelist Tag Manager tags and variables

To increase website security, you have the option to white- and blacklist tags/variables.
You can prevent specific tags from firing or the use of certain variable types regardless of your GTM setup.

If the Google account associated with your GTM account is being hacked, an attacker could easily
execute malware on your website without accessing its code on your hosting server. By blacklisting custom HTML tags
and/or custom JavaScript variables you can secure the Tag Manager container.

Integration

Google Tag Manager for WordPress integrates with several popular plugins. More integration to come!

Contact Form 7: fire an event upon successful form submission
WooCommerce:
- Classic e-commerce:
  - fire an event when visitors add products to their cart
  - capture transaction data to be passed to your ad platforms and/or Analytics
  - capture necessary remarketing parameters for Google Ads Dynamic Remarketing
- Enhanced e-commerce (beta):
  - implementation of Enhanced E-commerce
  - Does not support promotions since WooCommerce does not have such a feature (yet)
  - Does not support refunds

1.11.4

Fixed: fire gtm4wp.checkoutStepEEC and gtm4wp.checkoutOptionEEC events if there is only one shipping method available and it is hidden from the user
Fixed: decrease checkout step numbers 3 and 4 if shipping destination is set to ‘Force shipping to the customer billing address’ in WooCommerce. This way there will be no gap in Checkout behaviour report in Google Analytics.
Updated: tested version number for WooCommerce

1.11.3

Fixed: use var_export instead of var_dump in some debug code,
Fixed: apply WooCommerce option for tax inclusion on the order received page as well
Fixed: JavaScript errors in Vimeo player
Updated: do not add type attribute to script elements if theme suppors HTML5
Updated: tested version numbers for WordPress and WooCommerce

1.11.2

WARNING!
If you are upgrading directly from v1.10.x, please read the changelog of v1.11 since it includes many important notices!

No change in plugin code, WP.org deployment of v1.11.1 included wrong directories

1.11.1

WARNING!
If you are upgrading directly from v1.10.x, please read the changelog of v1.11 since it includes many important notices!

Fixed: PHP notice about undefined order_items variable if the new ‘Order data in data layer’ is turned off
Fixed: PHP notice about missing brand array key if no brand taxonomy is selected in GTM4WP options

1.11

WARNING!
Please read the changelog very carefully as there are many important changes and removed features which could need your attention before updating!

Added Oxygen Builder and Beaver Builder Theme support – you can now use the codeless placement option without issues
Added ability to fix the Google Tag Manager ID and GTM Environment parameters in wp-config.php. To use it, create PHP constants with the names
** GTM4WP_HARDCODED_GTM_ID
** GTM4WP_HARDCODED_GTM_ENV_AUTH
** GTM4WP_HARDCODED_GTM_ENV_PREVIEW
Added support for WooCommerce Grouped Products
Added new WooCommerce option to add all order data into the data layer on the order reveived page
** This includes personal data of the customer -> you need to ensure this is used in a privacy friendly and compliant way!
** This order data will be always present on the order received page, even if the page is reloaded or later revisited!
Removed several unofficial data layer variables on the WooCommerce order received page as they can be read using the new order data option
** transactionDate
** transactionType
** transactionPaymentType
** transactionShippingMethod
** transactionPromoCode
Improved: price reporting with the WooCommerce enhanced ecommerce integration now follows the option set with the ‘Display prices in the shop’ option of WooCommerce
Improved: from WooCommerce 3.7 WC_Abstract_Order::get_used_coupons() was replaced with WC_Abstract_Order::get_coupon_codes() which is now used if WC 3.7+ is detected
Improved: use localStorage for WooCommerce duplicate transaction tracking prevention if available. Should be work with Safari at least for now.
Fixed: WooCommerce duplicate transaction tracking prevention’s cookie was set to expire on session end, now adds 1 year.
Deprecated data layer variable productIsVariable. Use the new productType data layer variable which will equal to simple, variable, grouped or external depending on the type of the product shown
Fixed: Wrong lookup for product brand name if Use SKU instead of product ID option was turned on
Fixed: Wrong lookup for product brand name for variable products
Fixed: check if $woo->customer is initialized
Fixed: no checkout step reported on WooCommerce checkout page if the user has accepted the default selection of the payment and shipping methods

! Planned deprecation of support for WooCommerce 2.x-3.1.x with next plugin version !
! Planned deprecation of support for WordPress 4.x with next plugin version !

1.10.1

Fixed: wrong cookie name was used with the newly introduced double transaction tracking protection while setting the cookie
Fixed: double transaction tracking JavaScript code is now only included on the order received page
Fixed: product impressions not properly reported if Products per impressions were set to 0
Fixed: replaced all references to AdWords to Google Ads

1.10

Added: Automatically add the noscript part of the container code after the opening body tag for WordPress 5.2+ sites where themes support the new wp_body_open action
Added: add associated taxonomy values for post type
Added: select brand taxonomy for WooCommerce products to populate “Product brand” dimension in enhanced ecommerce
Added: add cart content into data layer so that you can personalize your site experience using Google Optimize
Added: option to remove shipping costs from revenue data on order received page of WooCommerce
Added: if you enable either enhanced ecommerce or just Google Ads remarketing variables, 3 new data layer variables will be also available about the product on a detail page
- Product rating details (productRatingCounts)
- Average product rating (productAverageRating)
- Review count (productReviewCount)
Added: if you are using Cloudflare, you can now add the country code HTTP header value into the data layer and read from it with the geoCloudflareCountryCode variable name
Fixed: better compatibility with Google’s mod_pagespeed
Fixed: missing product quantity while adding a variable product into the cart
Fixed: prevent multiple tracking of WooCommerce orders on mobile devices where the mobile browser reloads the order received page from local cache executing GTM tracking again

1.9.2

Fixed: possible PHP warning if geo data or weather data feature is turned on

1.9.1

Fixed: handle out of quota cases with ipstack queries properly
Fixed: proper YouTube tracking for WordPress sites and WordPress multisites installed in a subdirectory
Fixed: properly detect client IP address and also properly escape this data while using it
Fixed: WooCommerce checkout steps after page load did not include products in the cart
Fixed: checkout step events for payment mode and shipping type not always fired
Fixed: the CMD on Mac will be treated just like the Ctrl key on Windows while processing the product click event in the WooCommerce integration (thy for luzinis)
Fixed: add currencyCode to every ecommerce action in WooCommerce integration
Fixed: better WooCommere Quick View integration
Fixed: possible cross site scripting vulnerability if site search tracking was enabled due to not properly escaped referrer url tracking
Changed: code cleanup in WooCommerce integration

1.9

Added: initial support for AMP plugin from Automattic (thx koconder for the contribution!)
Added: option to remove tax from revenue data on order received page of WooCommerce
Added: WooCommerce enhanced ecommerce datasets now include stock levels
Added: new productIsVariable data layer variable is set to 1 on variable WooCommerce product pages
Added: product impressions can now be split into multiple chunks to prevent data loss on large product category and site home pages (thx Tim Zook for the contribution!)
- IMPORTANT! You will need to update your GTM setup, please read the new Step 9 section of the setup tutorial page.
Added: you can now disable flagging of WooCommerce orders as being already tracked once. In same cases (with iDeal for example) you may need this to make purchase tracking to work.
Added: uninstalling the plugin will now remove configured plugin options from database
Added: new advanced plugin option: data layer variable visitorDoNotTrack will include 1 if the user has set the do not track flag in his/her browser
Added: new data layer event when a user has logged in on the frontend: gtm4wp.userLoggedIn
Added: new data layer event when a new user has registered on the frontend: gtm4wp.userRegistered
Added: new advanced plugin option: move data layer declaration and Google Tag Manager container as close as possible to the beginning of the HTML document
Added: better WP Rocket support
Updated: Full Google Optimize support. Now the plugin can load your Google Optimize container with the recommended code placement
Updated: moved most of the inline JavaScript codes into separate .js files which should help cache plugins to do their job much better when my plugin is active
Fixed: wrong ecomm_pagetype on product search result pages
Fixed: PHP notice in some cases when geo data was not loaded properly
Fixed / Added: freegeoip.net was rebranded to ipstack.com and an API key is needed now even for free usage. You can now add your API key so that weather data and geo data can be added into the data layer
Warning: some plugin features will be remove from v1.10, most of them can be tracked now using pure Google Tag Manager triggers:
- Social actions
- Outbound link click events
- Download click events
- Email click events
Warning: PHP 5.6 is now the minimum recommended version to use this plugin. I advise to move to PHP 7.x

1.8.1

Added: new visitorIP data layer variable to support post-GDPR implementations where for example internal traffic exclusion has to be made inside the browser
Fixed: JavaScript error around the variable gtm4wp_use_sku_instead
Fixed: added _ as a valid character for gtm_auth GTM environment variable
Fixed: corrected typo – gtm4wp.checkoutStepEEC
Fixed: two strings were not recognized by WordPress Translate on the admin page
Fixed: some other plugins call found_variation event of WooCommerce without product variation data being included
Fixed: product name included variation name on order received page which broke GA product reports
Fixed: in some cases, no contact form 7 data was being passed to the gtm4wp.contactForm7Submitted event
Updated: added CDATA markup around container code for better DOM compatibility
Updated: removed ‘SKU:’ prefix text from classic ecommerce dimension as it broke some enhanced ecommerce reports

1.8

Fixed: weather data tracking codes could result in fatal PHP error
Fixed: cart events did to fire while user pressed the Enter key in quantity fields
Fixed: contact form 7 changed some code which prevented successful form submission tracking
Changed: links to plugin website updated
Changed: gtm4wp.cf7formid data layer variable now includes the ID of the form in WordPress
Added: gtm4wp.cf7inputs includes data that has been filled in the form
Added: WooCommerce compatibility headers
Added: admin warning for WooCommerce 2.x users. This plugin will drop support for WooCommerce 2.x soon
Added: postFormat data layer variable on singular pages
Added: customer* data layer variables with stored billing and shipping data, total number of orders and total value of those orders (needs WooCommerce 3.x)
Added: geo* data layer variables to get country, city, lat-lon coordinates of the visitor
Added: visitorUsername data layer variable with the username of the logged in user
Added: more detailed checkout reporting for WooCommerce sites
- Add gtm4wp.checkoutStepEEC to your Ecommerce Helper trigger
- Change a typo: gtm4wp.checkoutOptionECC => gtm4wp.checkoutOptionEEC
Added: option to include full product category path in enhanced ecommerce reporting (can cause performance issues on large sites!)
Added: initial support for Google Tag Manager Environments
Added: support for WooCommerce Quick View plugin
Updated: description of code placement options to clarify what this option does
Updated: cleanup of readme.txt, spelling and grammar improvements
Updated: bundled WhichBrowser lib v2.0.32

1.7.2

Fixed: in some cases, the remove item from cart link in a WooCommerce cart was not altered properly with additional tracking codes
Fixed: product categories were empty in the cart, on the checkout pages and on the order received page for product variations
Fixed: checkout option data included checkout step #1 if cart page was setup to be the first
Fixed: even more WooCommerce 3.x compatibility
Added: registration date of the logged in user can be added to the data layer
Updated: geoplugin.net has been replaced by freegeoip.net for weather tracking which has far better quota for free usage
Updated: Google Ads dynamic remarketing data layer items on a WooCommerce product page will be shown for the root product as well on variable product pages
Updated: Selecting a product variation will include the price of the product in Google Ads dynamic remarketing data layer items
Updated: minor code cleanup

1.7.1

Fixed: PHP 5.3 compatible syntax in frontend.php
Fixed: PHP error using classic ecommerce with WooCommerce 2.6.x
Updated: Added data-cfasync=’false’ to all elements to prevent CloudFlare to load scripts async
Added: Warning for users of PHP 5.4 or older to consider upgrade (FYI: PHP 5.5 and older versions do not get even security fixes)

1.7

Updated: even better WooCommerce 3.0 compatibility (WooCommerce 2.6 still supported but this support ends with the next plugin version)
Fixed: properly escaping product category name on variable product detail pages
Fixed: proper data layer stucture in the gtm4wp.changeDetailViewEEC event
Added: Google Optimize page hiding snippet under Integrations tab
Added: add to cart data for WooCommerce enhanced ecommerce tracking if user undos a cart item removal (no need to update GTM tags)
Added: you can now enter a product ID prefix so that IDs can match with IDs in some product feeds generated by other plugins
Added: option to track cart page as step 1 in enhanced ecommerce checkout funnel

1.6.1

Fixed: PHP warning message on WooCommerce cart page
Fixed: Better compatibility with WooCommerce 2.6.x 🙂

1.6

Fixed: do not block product list item clicks if ad blocker is enabled
Fixed: only track product clicks in product lists if link points to the product detail page URL
Fixed: PHP warning in backlogs ‘Undefined variable: gtm4wp_options’
Added: product variation support in WooCommerce integration (enhanced ecommerce implementations should add the GTM event gtm4wp.changeDetailViewEEC to the ecommerce event trigger)
Updated: better WooCommerce 3.0 compatibility

1.5.1

Fixed: clicks on products in product list pages redirected to undefined URLs with some themes.

1.5

Lots of WooCommerce ecommerce codes has been changed and extended, please double check your measurement after upgrading to this version!

Added: warning message if you are using PHP 5.3 or older. Browser/OS/Device tracking needs 5.4 or newer
Added: Email address of the logged in user into the visitorEmail dataLayer variable. Remember: to comply with GTM TOS you are not allowed to pass this data towards any Google tag but you can use this in any other 3rd party tag.
Added: gtm4wp_eec_product_array WordPress filter so that plugin and theme authors can add their own data for enhanced ecommere product arrays
Fixed: JavaScript error in WooCommerce stores when enhanced ecommerce enabled and a product being clicked in a widget area
Fixed: Order data not present in some cases on the order received page
Changed: Extended “User SKUs instead of IDs for remarketing” option to be also applied to ecommerce product data arrays
Changed: Use wc_clean instead of the deprecated function woocommerce_clean
Changed: New, divided GTM container implemented – a fixed part in the and an iframe part placed using the container placement option you’ve set earlier

1.4

Fixed: WP CLI error message
Fixed: wrong dynamic remarketing tagging on cart and checkout pages
Updated: WhichBrowser library to 2.0.22
Updated: slightly changed container code snippet to prevent W3 Total Cache to alter the code which breaks proper code execution
Updated: replaced file_get_contents() usage in weather tracking to wp_remote_get() so that it is more compatible with several WP instances
Updated: YouTube/Video/Soundcloud tracking now tracks videos not embedded using oEmbed (like videos in a widget area)
Updated: new Vimeo Player API implemented which should solve several issues
Changed: adapted W3C HTML5 media player event names which changes some events (needs updating your existing GTM setup):
- Soundcloud: finish => ended, seek => seeked
- YouTube: playing => play, paused => pause, playback-rate-change => ratechange
- Vimeo: seek => seeked
Added: new placement option – ‘off’. This will only generate the data layer but you will need to add the proper GTM container code snippet by hand
Added: new data layer variable: authorID
Added: new data layer variable: siteID to be able to track based on blog ID in a multisite environment
Added: new data layer variable: siteName to be able to track in a multisite environment

1.3.2

Fixed: remove cart event not fired in WooCommerce 2.6
Fixed: ecomm_prodid.push error message on product detail pages
Fixed: proper tracking of cart actions on the cart page for WooCommerce 2.6
Fixed: ‘Illegal string offset’ errors in some cases in the cart
Fixed: OpenWeatherMap requires a (free) API key now, you can now enter this to use weather data in data layer

1.3.1

Fixed: “json_encode() expects parameter 2 to be long, string given” on PHP 5.3 instances
Fixed: Fatal PHP error in cart if you enabled taxes to be included in your cart

1.3

Major changes to the Enhanced Ecommerce implementation of the WooCommerce integration!

Fixed: proper tracking of list positions
Fixed: opening product detail page in a new window/tab when user pressed the CTRL key
Fixed: ecomm_totalvalue included the total price of the cart without taxes
Fixed: ecomm_totalvalue does not take into account the quantity of ordered products on the order received page
Fixed: php error message on product lists when Google Ads dynamic remarketing was enabled on WooCommerce 2.6
Fixed: added data-cfasync=”false” to the GTM container code for better compatibility with CloudFlare
Added: introducing tracking of list names (general product list, recent products list, featured products list, etc.)
- Some list names (like cross-sells) will be shown as ‘General Product List’. A proposed change in WooCommerce 2.6 will solve that issue
Added: tracking product lists in widgets
Added: tracking checkout options (payment and shipment)
Updated: better add-to-cart / remove-from-cart management in mini cart and while updating cart content
Updated: added currency code to each enhanced ecommerce call so that currency reporting is OK for multi currency sites
Updated: replaced usage of get_currentuser() to keep compatibility with WordPress 4.5

1.2

Fixed: subtabs on admin page now showing in certain cases
Fixed: error message when running the site using WP CLI (thanks Patrick Holberg Hesselberg)
Fixed: some typos on admin page
Fixed: dismissable notices did not disappear in some cases
Fixed: tracking of Twitter event cased sometimes JS errors
Fixed: site search tracking caused sometimes PHP errors when HTTP_REFERER was not set
Updated: preparation for translate.wordpress.org
Added: support for multiple container IDs
Added: added form ID when sending a Contact Form 7 form. Variable name: gtm4wp.cf7formid

1.1.1

Fixed: PHP errors in frontend.php and admin.php

1.1

Added: track embedded YouTube/Vimeo/Soundcloud videos (experimental)
Added: new checkbox – use product SKU for Google Ads Dynamic Remarketing variables instead of product ID (experimental)
Added: place your container code after the opening body tag without modifying your theme files (thx Yaniv Friedensohn)
Added: automatic codeless container code injection for Genesis framework users
Fixed: Possible PHP error with custom payment gateway (QuickPay) on the checkout page (thx Damiel for findig this)

1.0

The plugin itself is now declared as stable. This means that it should work with most WordPress instances.
From now on each version will include features labeled as:

Beta: the feature has been proven to work for several users but it can still have some bugs
Experimental: new feature that needs proper testing with more users
Deprecated: this feature will be removed in a future version

If you see any issue with beta or experimental functions just disable the checkbox. Using this error messages should disappear.
Please report all bugs found in my plugin using the contact form on my website.

Fixed: wrong GTM container code when renaming default dataLayer variable name (thx Vassilis Papavassiliou)
Fixed: Enhanced Ecommerce product click data was “undefined” in some cases (thx Sergio Alen)
Fixed: wrong user role detection while adding visitorType to the dataLayer (thx Philippe Vachon-Rivard)
Changed: only add visitorId to the dataLayer if there is a logged in user
Added: feature labels so that you can see beta, experimental and deprecated features
Deprecated: outbound click, email click and download click events. You should use GTM trigger events instead

0.9.1

Fixed: PHP error message: missing get_shipping function using WooCommerce 2.3.x

0.9

Added: visitorId dataLayer variable with the ID of the currently logged in user to track userID in Google Analytics
Added: WordPress filter hook so that other templates and plugins can get access to the GTM container code before outputting it
Fixed: ‘variation incorrect’ issue by Sharken03
Fixed: error messages in WooCommerce integration when product has no categories
Fixed: add_inline_js errors in newer versions of WooCommerce
Fixed: error message when some device/browser/OS data could not be set
Fixed: tracking Twitter events was broken

0.8.2

Fixed: broken links when listing subcategories instead of products (thanks Jon)
Fixed: wheather/weather typo (thanks John Hockaday)
Fixed: wrong usage of get_the_permalink() instead of get_permalink() (thanks Szepe Viktor)

0.8.1

Fixed: PHP error in enhanced ecommerce implementation when using layered nav widget

0.8

Updated: Added subtabs to the admin UI to make room for new features 🙂
Updated: WhichBrowser library to the latest version
Added: You can now dismiss plugin notices permanently for each user
Added: weather data. See updated plugin description for details
Added: Enhanced E-commerce for WooCommerce (experimental!)
Fixed: PHP notice in frontend.php script. Credit to Daniel Sousa

0.7.1

Fixed: WooCommerce 2.1.x compatibility

0.7

Updated/Fixed: dataLayer variables are now populated at the end of the head section. Using this the container code can appear just after the opening body tag, thus Webmaster Tools verification using Tag Manager option will work
Added: blacklist or whitelist tags and macros to increase security of your Tag Manager setup

0.6

Updated: better add-to-cart events for WooCommerce, it includes now product name, SKU and ID
Added: browser, OS and device data to dataLayer variables
Added: postCountOnPage and postCountTotal dataLayer variables to track empty categories/tags/taxonomies

0.5.1

Fixed: WooCommerce integration did not work on some environments

0.5

Added: scroll tracking
Fixed: social tracking option on the admin panel was being shown as an edit box instead of a checkbox
Fixed: WooCommerce transaction data was not included in the dataLayer if you selected “Custom” code placement
Fixed: do not do anything if you enabled WooCommerce integration but did not activate WooCommerce plugin itself
Updated: do not re-declare dataLayer variable if it already exists (because another script already created it before my plugin was run)

0.4

Added: you can now select container code placement. This way you can insert the code snippet after the opening body tag. Please read FAQ for details
Added: initial support for social event tracking for Facebook and Twitter buttons. Please read FAQ for details
Updated: event name on successful WooCommerce transaction: OrderCompleted -> gtm4wp.orderCompleted
Fixed: frontend JS codes did not load on some WordPress installs

0.3

Updated: admin page does not show an alert box if Tag Manager ID or dataLayer variable name is incorrect. Instead it shows a warning line below the input field.
Updated: rewritten the code for WooCommerce dynamic remarketing. Added tag for homepage and order completed page.

0.2

! BACKWARD INCOMPATIBLE CHANGE ! – Names of Tag Manager click events has been changed to comply with naming conventions:
- ContactFormSubmitted -> gtm4wp.contactForm7Submitted
- DownloadClick -> gtm4wp.downloadClick
- EmailClick -> gtm4wp.emailClick
- OutboundClick -> gtm4wp.outboundClick
- AddProductToCart -> gtm4wp.addProductToCart
Updated: click events are now disabled by default to reflect recently released Tag Manager auto events. I do not plan to remove this functionality. You can decide which solution you would like to use 🙂
Updated: language template (pot) file and Hungarian translation
Added: new form move events to track how visitors interact with your (comment, contact, etc.) forms
Added: event names to admin options page so that you know what events to use in Google Tag Manager
Added: Google Tag Manager icon to admin settings page
Added: Settings link to admin plugins page
Fixed: null value in visitorType dataLayer variable if no logged in user exists (now ‘visitor-logged-out’)

0.1

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