access universal clientId through GTM

[Zvika Jerbi]

Hi, 

I cant seem to access GA universal clientId when using GTM. 

I have tried using this code:

anyone with an idea on how this could be solved without accessing the cookie directly?

ga(function(tracker) {
  var clientId = tracker.get('clientId');
});

[Yehoshua Coren]

Seems to work for us.  We use the following to pass the clientId into a custom dimension:

ga(function(tracker) {

 ga('set', 'dimension1', tracker.get('clientId'));

});

[Zvika Jerbi]

thanks Yehoshua. 

is the basic UA tracking script in your case firing through GTM?

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[Yehoshua Coren]

Not the regular vanilla UA GTM tag, we're using a custom tag for that.

[Zvika Jerbi]

thats why you dont have any trouble getting the clientId. 

the problem starts when using the GTM code predefined in GTM. 

thanks

[Yehoshua Coren]

The regular GTM tag doesn't run custom functions.

[Zvika Jerbi]

I know. i run the basic code through GTM regular UA tag and trying to access clientId via custom html tag. 

[Yehoshua Coren]

Access the clientId via custom html tag which includes a GTM dataLayer.push EVENT. 

Then fire the GTM UA tag with the event macro as a rule.

YC

[Ruben F]

Here's the solution: 

ga.getAll()[0].b.data.w[':clientId'];

Just run that in the console and check it out. 

[Brad Townsend]

I'd caution against using the obfuscated field names like 'b', 'data', and 'w'. Those may change from release to release. 

The equivalent command with the official API is: 

  ga.getAll()[0].get('clientId');

This works if you have only one tracker object on the page, but if you have multiple consider setting a Tracker Name in the GTM UI (under More Settings > Advanced Configuration), then accessing the tracker by it's name as follows:

  ga.getByName('myTrackerName').get('clientId');

Cheers,

-Brad

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[Ruben Flam]

Thanks Brad! 

We figured that one out the hard way.. ;)

2013/9/19 Brad Townsend <btow...@google.com>

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[Владимир Мюге]

Hey there!

I spend a lot of time to find solution how to collect clientId in customer dimesion with implement UA tag as UA tag, but not as custom html.

So, the solution: put in value of your dimension macros with macros type "1st party cookie" and cookie name "_ga"

Very hard way for very easy solution, hope it will be helpfull for someone.

2013/9/19 Brad Townsend <btow...@google.com>

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[Petr Havlík]

Brad, I am getting the error message saying that:

1. 
   
2. Uncaught ReferenceError: ga is not defined

I tried using Custom Javascript macro to get ClientID, but it doesn't work. Any tips?

Petr

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[Marc Lindsay]

I've just had this exact same issue..... finally worked it out (for me)

If you want to see the entire thing play out, in chrome, console.... Just type the following.

tracker = ga.getAll()[0];

clientId = tracker.get('clientId');

No function needed, no ga. needed.

This was using standard GTM setup with UA and running multiple trackers.

I hope this saves someone else the many hours spent researching this sucker.

[Johan Wergelius]

WORKING SOLUTION from GTM with custom html setup.

Because you try to get a value that doesn't exist yet when running your code it will not work in GTM without a similar solution as my (might work with jquery .ready function).

It is it working in the console.log because of the the object and values exist at that time.

<script>

function addOnLoadFunction(func) { 

 if (window.attachEvent) {

   window.attachEvent('onload', func);

 }

 else {

   window.addEventListener('load', func);

 }

}

function getClientId () { 

  var tracker = window.ga.getAll()[0],

  clientId = tracker.get('clientId');

  /*

  //The other way

  var clientId = '';

  ga(function(tracker) {

    clientId = tracker.get('clientId');

  });*/

  var dimensionValue = clientId;

  // dimensionValue in ga function can probably be switched to just clientID 

  ga('set', 'dimension1', dimensionValue);

  ga('send', 'pageview');

}

addOnLoadFunction( function() { getClientId(); });

</script>

[Maxim Ostapenko]

Easy and solid solution, that we are currently using - reading _ga cookie and extracting ClientId from there:

1. Create custom JS macros called "Cookie CId",

2. Enter the following function into custom JS:

function()

{

    var match = document.cookie.match('(?:^|;)\\s*_ga=([^;]*)');

    var raw = (match) ? decodeURIComponent(match[1]) : null;

if (raw)

{

match = raw.match(/(\d+\.\d+)$/);

}

var gacid = (match) ? match[1] : null;

if (gacid)

{

   return gacid;

}

}

3. Use macros {{Cookie CId}} even there is no GA loaded yet on the page.

[Johan Wergelius]

Yes, Maxim your solution should be the recommended one. Because you don't have to wait it will intergret smooth with all setups in GTM. When using macros it will be easy to both send it to Universal and into your data warehouse etc.

[Eduard Schikurski]

Awesome solution! I'm using AngularJS with angulartics tagmanager and was now able to set the client-id to a custom dimension without a change to the original code. This wasn't possible with the solution before. Thanks!