Google tag manager - Get GA4 event value from another tag manager event

Question

I need to configure GA4 ecommerce event for a full integration inside conversion tab in the new Google Analitycs version. I have a tag manager configured with some custom variables to get dataLayer from checkout process and other things. I need to get this DataLayer value to use it in GA4 event.

My current event is called 'InitiateCheckout' and has this DataLayer:

{
  event: 'InitiateCheckout',
  gtm: {
    uniqueEventId: 13,
    start: 1615035423900,
    scrollThreshold: 90,
    scrollUnits: 'percent',
    scrollDirection: 'vertical',
    triggers: '1_33'
  },
  gtag: {targets: {AW-412426139: {}}},
  content_name: 'Product 123A',
  value: '9.99',
  currency: 'EUR'
}

I need to extract 'content_name', 'value' and 'currency' to compile 'begin_checkout" GA4 events as mentioned in the official guide. When i start my configuration i can't figure a way out to insert this data as a value of the event parameter. How can i call it?

Unfortunately I can't change the name of the events I'm already recording to match the GA4 events features, the platform doesn't allow this so I need to find a way to get this value from another event.

GA4 event parameters Tag Manager current Event DataLayer preview

Michele Pisani · Accepted Answer · 2021-03-10 21:06:38Z

0

It looks like a simple push to the dataLayer of some values. I don't know how they are used in your system but with the information I see just need to create a Data Layer Variable that has the name of the parameter of interest as its name (i.e. Data Layer Value called DL content_name and variabile name equals to content_name), then enter the value of your variable in the value field of your GA4 tag, i.e. {{DL content_name}}.

EDIT

You can create a custom event trigger named InitiateCheckout and associate it with the GA4 tag, so you can access those values by creating dataLayer variables and use them in the tag.

edited Mar 10, 2021 at 21:06

answered Mar 6, 2021 at 17:04

Michele Pisani

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2 Comments

Nicolò Lazzati Over a year ago

Thanks for your reply. Unfortunately I can't push the variables in this way. My data layer information are inside a custom event (linked to my platform, I cant edit it - here some info) so I can't split or get that value individually. When generated this DataLayer value are inside this custom event. I need to get this value from this event. Are there some command to get this value from another dataLayer event? Something as InitiateCheckout.content_name.

Michele Pisani Over a year ago

I don't know if I understand correctly the situation, I assume that the dataLayer is shared and you can create trigger in your GTM. Anyway I edited my answer.

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