This guide is a subset of the main TCFv2 GTM Implementation Guide specifically covering variables. If you have not read the GTM Implementation Guide, start there. For more information about Quantcast Choice, see our User Guide.
If a user does NOT to import the json container provided in the GTM Implementation Guide, these GTM variables will need to be created manually. However, users SHOULD import (and merge) the sample container and all of the variables will be imported automatically.
Other documents in this series:
- TCFv2 Google Tag Manager (GTM) Implementation Guide
- TCFv2 GTM Implementation Guide - IAB Vendor Tag Blocking
- TCFv2 GTM Implementation Guide - Finding your UTID
Constant Variables
Variable: QCChoice - UTID
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The QCChoice UTID variable is a constant that should be populated with your Quantcast Universal Tag ID. You can find your UTID by following the guide here.
Variable: QCChoice - DataLayer Push
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The QCChoice - DataLayer Push variable is a constant that should be set to either true or false. When true, this will enable functionality in the Custom HTML Tag that will automatically push user consent signals to DataLayer for consumption by Triggers to allow/block certain tags to fire.
Variable: QCChoice - CCPA
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The QCChoice - CCPA variable is a constant that should be set to either true or false. When true, along with a valid QCChoice - CCPA msg id constant value set, the Choice CCPA message will be added to the website (You must also have CCPA enabled on the tag at quantcast.com).
Variable: QCChoice - CCPA msg id
- The QCChoice - CCPA msg id variable is a constant that should be set to a string value. This value must be the html id of the container on the website where you want the CCPA footer message added.
Non-IAB Vendor Data Layer variables
* Non-IAB Vendors must be defined in Quantcast.com see the guide here on how to add Non-IAB vendors.
When the user opens the Quantcast Choice consent dialog, makes their decisions, and closes the dialog, an object is pushed into the window.dataLayer array with details about what type of consent was given by the user with some other relevant information as well.
To be able to use this metadata when creating and modifying the triggers for your Google Tag Manager tags, you need to create a couple of Data Layer variables in the Google Tag Manager user interface.
To create the following variables, go to the Variables section of the container by clicking the respective link in the left-hand side navigation of the container user interface. Scroll down to User-defined variables and click New. Repeat this for each of the variables you need to create.
Variable: nonIABVendorConsentIds
QC - __cmpConsents.nonIABVendorConsentIds, and its type is Data Layer variable.
Set the Data Layer Variable Name field to __cmpConsents.nonIABVendorConsentIds.
This variable returns a comma-separated string of all the Non-IAB vendor IDs to which the user has given consent (e.g. "1,32,101").
Variable: nonIABVendorsWithConsent
QC - __cmpConsents.nonIABVendorsWithConsent, and its type is Data Layer variable.
Set the Data Layer Variable Name field to __cmpConsents.nonIABVendorsWithConsent.
This variable returns a pipe-separated string of all the Non-IAB vendor names to which the user has given consent (e.g. "Facebook|Hotjar|Twitter").
IAB Vendor Data Layer variables
When the user opens the Quantcast Choice consent dialog, makes their decisions, and closes the dialog, an object is pushed into the window.dataLayer array with details about what type of consent was given by the user with some other relevant information as well.
To be able to use this metadata when creating and modifying the triggers for your Google Tag Manager tags, you need to create a couple of Data Layer variables in the Google Tag Manager user interface.
To create the following variables, go to the Variables section of the container by clicking the respective link in the left-hand side navigation of the container user interface. Scroll down to User-defined variables and click New. Repeat this for each of the variables you need to create.
Variable: iabVendorConsentIds
QC - __cmpConsents.iabVendorConsentIds, and its type is Data Layer variable.
Set the Data Layer Variable Name field to __cmpConsents.iabVendorConsentIds.
This variable returns a comma-separated string of all the IAB vendor IDs to which the user has given consent (e.g. "1,3").
Variable: iabVendorsWithConsent
QC - __cmpConsents.iabVendorsWithConsent, and its type is Data Layer variable.
Set the Data Layer Variable Name field to __cmpConsents.iabVendorsWithConsent.
This variable returns a pipe-separated string of all the IAB vendor names to which the user has given consent (e.g. "My Custom AdTech Organization, Ltd.|AdMaster Inc.").
