We tried to change Global Method Name as described in the tutorial at https://www.simoahava.com/custom-templates/snowplow-analytics/ (both in the template and in the tag definitions).

However, this change seems not to be working. I think, the tags are still looking for the old keys:

Not sure if this is a bug or if we missed some steps from the tutorial?

In addEnhancedEcommerceProductContext, the list field is set to null, when there is no product list defined in the datalayer. However, the Snowplow schema doesn't allow null, but only strings:

I'm not sure what the best option would be in that case?

There are some breaking changes from v2 to v3.

https://docs.snowplowanalytics.com/docs/collecting-data/collecting-from-own-applications/javascript-trackers/javascript-tracker/v2-to-v3-migration-guide/

The links in Help Text prompts should open in a new tab so that they do not erase the user's in-progress settings when clicked. The link in trackerName Help Text is where I first spotted this.

Thanks for submitting a template to the gallery, there were a few issues in your template that needed to be resolved ahead of approving the template for the gallery.

1. User instructions to install the template should direct users to install the gallery version of the template by clicking on the "Search Gallery" button in the template tab to add the gallery template.
2. The documentation url shows "Page not found" error.
   

The current permissions for google storage hosted URLs only allows storage.cloud.google.com which requires users to be authenticated with Google to access the hosted files. The public, and unauthenticated domain is: storage.googleapis.com and should be a default-enabled domain for this template.

I'm not a 100% sure if this is a template problem, but I believe it is possible to send global contexts with all kinds of Snowplow events. However when defining global contexts, I can't find any way to attach them to link_click events.

My GTM setup in order of tag sequence:

1. addGlobalContexts
2. pageView
3. Link Click Tracking

I did also try to directly add the contexts via "Add Custom Contexts" but no luck either...

I was having trouble with the addEnhancedEcommerceImpressionContext as it always was marked as invalid schema. I realized, that the Snowplow library picks up the wrong values of the Datalayer. This seems to be because of the positional arguments the SP library is requiring:

This is an impression datalayer example:

        id: 'U-30-Abo ePaper und M-Plus',
        name: 'U-30-Abo ePaper und M-Plus',
        price: '14.9900',
        brand: 'Mittelbayerische Zeitung',
        category: 'catalog/category/view/s/neukunde-digitale-angebote/id/24/',
        position: 1,
        list: 'Spezial Angebote'

This is what ends up in the Snowplow hit:

id:	U-30-Abo ePaper und M-Plus
name:	U-30-Abo ePaper und M-Plus
list:	Spezial Angebote
brand:	Mittelbayerische Zeitung
category:	catalog/category/view/s/neukunde-digitale-angebote/id/24/
variant:	1
position:	14

Position will end up as variant and part of the price will end up as position.

Snowplow recently added the option for anonymous tracking (https://docs.snowplowanalytics.com/docs/collecting-data/collecting-from-own-applications/javascript-tracker/general-parameters/other-parameters-2/#Toggling_Anonymous_Tracking_2150)

It would be great to be able to use the snowplow('disableAnonymousTracking'); and snowplow('enableAnonymousTracking'); in the templates.

There should probably be an option to also do a snowplow('clearUserData');

If "Use Data Layer" was selected, the Enhanced Ecommerce tracking would not work.

Unit test coverage should be updated to check Enhanced Ecommerce with Use Data Layer option.

Manual link click tracking is currently the odd one out when it comes to events in the template.

Other events let you load the parameters using a variable, but manual link tracking only has the parameter table option.

Link tracking should be fixed to also allow loading the parameters from a variable.

Currently the default permission for injectScript is the GitHub link to the Snowplow library. This is a relic of the development process, where I was loading the script from GitHub directly, knowing it would work fine with the limited use I had for the template while developing it.

However, now the link is a big problem, because modifying the permission will break the link to the gallery.

By setting the default permissions to:

https://*.cloudfront.net/*
https://storage.cloud.google.com/*

Most cases of self-hosting would likely be solved, as it is probably very common to load the dependency from these hosts.

The current implementation of the template requires that every single command and hit be represented by their own tag instance. This is to give the admin command over order of execution without complicating the template itself with this logic.

However, it would make sense to offer the option of adding more than one command to the template as well as the option of having the template itself then fire a "regular" event. So you could configure a single tag to:

setUserId
enableLinkTracking
addGlobalContext
trackPageView

For example. This could be done by turning "commands" into a table, where each row represents a command and its arguments, and the order of the items in the table represents the order the commands are fired.

I've used this snowplow gtm template before and found it really helpful to have a context variable template. It would be great to integrate something similar in the snowplow gtm templates as well.

Link to repo with example templates:
https://github.com/mmathias01/snowplow-gtm-templates