Hard code Google Tag Manager parameters in wp-config.php

You can set a fixed Google Tag Manager container ID and environment options in wp-config.php using PHP contants. This gives you better workflows when dealing with different environments to develop and test updated version of the whole site. Setting GTM container parameters like this will change the corresponding lines on the plugin options page to a disabled, read only state. Even site administrator will not be able to override the container code on the options page. To change or remove the hard coded values, you need to access your wp-config.php file and edit the corresponding lines.

Use the following PHP constants:

GTM4WP_HARDCODED_GTM_ID

This has to be one or more valid Google Tag Manager IDs (GTM-XXXXX). If you want to load multiple container, separate the list with commas. You must not use spaces around commas when listing the container codes.

GTM4WP_HARDCODED_GTM_ENV_PREVIEW

This must include the value of the gtm_preview parameter from the container code of your Google Tag Manager environment. If you use this option, only provide one container ID in plugin options or in the GTM4WP_HARDCODED_GTM_ID constant. Currently, only loading of one container is supported when using environments. If you set this constant, also set GTM4WP_HARDCODED_GTM_ENV_AUTH in order for the environment to properly load.

To learn more about how to get this parameter from the container code, please check the GTM environment setup guide.

GTM4WP_HARDCODED_GTM_ENV_AUTH

This must include the value of the gtm_auth parameter from the container code of your Google Tag Manager environment. If you use this option, only provide one container ID in plugin options or in the GTM4WP_HARDCODED_GTM_ID constant. Currently, only loading of one container is supported when using environments. If you set this constant, also set GTM4WP_HARDCODED_GTM_ENV_PREVIEW in order for the environment to properly load.

To learn more about how to get this parameter from the container code, please check the GTM environment setup guide.