When copy pasting the code from Google tag manager in the "Web layout" :

Error:

Traceback:

TypeError: Cannot read property 'user_context' of undefined

    at Object.loadAsset (https://find-your-nest.odoo.com/web/content/5793-069c7b5/1/web.assets_common_lazy.js:3751:39)

    at https://find-your-nest.odoo.com/web/content/5793-069c7b5/1/web.assets_common_lazy.js:3752:1256

    at https://find-your-nest.odoo.com/web/content/5793-069c7b5/1/web.assets_common_lazy.js:3752:1515

    at https://find-your-nest.odoo.com/web/content/5793-069c7b5/1/web.assets_common_lazy.js:3772:607

That would be really helpful :)

Thanks,

Marie