List Name (not set) for add to cart, checkout, purchase

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Name of affected component: Core Reporting API

Issue summary:
As I can read here : 
https://support.google.com/analytics/answer/6014841?hl=en#product_attribution
The last Product List name (from product impression tag) should be linked to 
events : Add to cart, checkout, purchase.  
But it doesn't

Steps to reproduce issue:
1. Add Product impression's Tag on a product list, with a list name.
2. Add to cart from this product list.
3. Check the report Product List Performance on analytics

Expected output:
There should be one line, with the list name and with the "product impression" 
column set to '1' and the "add to cart" column to '1'.

Actual results:
You have on line for the list name, with the "product impression" column to 
'1'. And one line with a list name set to "(not set)" with the" add to cart" 
column to '1'.

Notes:
If you go to the product view page (with a detailImpression tag), and then add 
to cart, then it seems to work. But if you add to cart from list (without 
detail Impression tag), the list name is recorded as (not set).

Original issue reported on code.google.com by vincent....@gmail.com on 18 Dec 2014 at 9:41

[GoogleCodeExporter]

By reading the GA docs I came to the conclusion that this is a limitation of 
the measurement protocol and therefore GA itself.

You can find the relative document here: 
https://developers.google.com/analytics/devguides/collection/protocol/v1/paramet
ers

The description of the "Product Action List" parameter says that the product 
list of a product impression object only gets attributed to the "detail" and 
"click" actions. 

In other words, if you send the "Product Action List" parameter alongside a 
"Product Action" parameter whose value is anything else except "detail" or 
"click", then it's highly likely that the issue you described will appear in 
the "Product List Performance" report.

Using the example illustrated here:
https://developers.google.com/analytics/devguides/collection/analyticsjs/enhance
d-ecommerce

This command won't work in our case:
ga('ec:setAction', 'add', {list: 'Search Results'});

But this will:
ga('ec:setAction', 'click', {list: 'Search Results'});

The problem occurs when the user inserts the product to his cart ("add" action) 
without interacting ("click" action) or viewing the details of ("detail" 
action) of it. 

One solution would be to send two events with similar GA ecommerce parameters 
when a user adds the product directly to his cart. The prior would be an 
interactive and the latter a non interactive event or vice versa.

Here's an example:

I'm logged into a ecommerce website, just landed on a web page and viewed all 
of the page's products (pageview with relevant enhanced ecommerce impression 
data is already sent). I now add a product with the product list "TVs" to my 
cart. At this moment two GA events should be fired:

1) One with ga('ec:setAction', 'click', {list: 'TVs'});

2) The other with ga('ec:setAction', 'add', {list: 'TVs'});

Original comment by george.p...@gmail.com on 5 May 2015 at 9:00

[GoogleCodeExporter]

I managed to get this working by adding the action field attribute to the 
dataLayer call.  Like this:

dataLayer.push({
  'event': 'addToCart',
  'ecommerce': {
    'currencyCode': 'EUR',
    'add': {  
      'actionField': {'list': 'Search Results'},                         
      'products': [{
        'name': 'Triblend Android T-Shirt',
        'id': '12345',
        'price': '15.25',
        'brand': 'Google',
        'category': 'Apparel',
        'variant': 'Gray',
        'quantity': 1,
        'list': 'Search Results'
       }]
    }
  }
});

That worked for me.

Original comment by ardent.a...@ardentleisure.com on 8 Sep 2015 at 3:51

[GoogleCodeExporter]

I had the same problem and was stuck for hours. 

My issue was that I had the checkout process on a different subdomain than 
where the product impressions was listed and clicked on. 
By simply adding a field on the GA page view tag i GTM, "cookieDomain" = 
"auto", all started working. 
http://www.lunametrics.com/blog/2015/06/16/cross-domain-tracking-with-google-tag
-manager/

The only places I needed to add information about the list, was:
- product impressions list. "'list' : 'Search result'"
- product click (from impressions list). 'actionField': {'list': 'Search 
Results'},

I did not add it for product detail, or anything in the checkout process (add 
to cart, checkout, purchase).

For other external domains in the checkout process I guess you will need cross 
domain tracking.

Original comment by asgaut.m...@cityhotels.no on 11 Sep 2015 at 10:46

[GoogleCodeExporter]

[deleted comment]

[GoogleCodeExporter]

We're having the same problem.

We've tried all of the suggestions above, but are still seeing a large number 
of (not set)'s showing around (45%) for the product checkouts list.

Original comment by lee.jaco...@gmail.com on 5 Nov 2015 at 5:50

[GoogleCodeExporter]

Issue 750 has been merged into this issue.

Original comment by mcoh...@google.com on 6 Nov 2015 at 9:40

[GoogleCodeExporter]

I have the same problem, 

Original comment by thebabyc...@gmail.com on 18 Nov 2015 at 2:20

[GoogleCodeExporter]

[deleted comment]

[GoogleCodeExporter]

Same here. Currently experiencing a very high volume of revenue associated to 
product list name set as "(not set)". Looking forward to see if GA tech team 
will be fixing this soon.

Original comment by johnan...@gmail.com on 18 Nov 2015 at 9:21