Pull data to variable from data layer in Google tag manager

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i want to pull data from my datalayer in a Magento store, and store it as a variable in Google tag manager. I use the Welt pixel for creating data layer for the e-commerce data.

How can I put e.g. products.brand in a variable, so I can send it as a parameter in Google analytics 4.

I've tried to put in the following, in a variable - but non of them are right; ecommce.detail.products.brand, e-commerce.brand, products.brand

If I just put e-commerce, the whole array is being inserted as a variable.

Can anyone help me figuring this out?

{
  ecommerce: {
    detail: {
      products: [
        {
          name: " Pinot Noir, Gaul",
          id: "5704",
          price: "150.00",
          brand: "Matthias Gaul, Pfalz",
          category: "Shoppen/Vine"
        }
      ]
    },
    currencyCode: "DKK",
    add: {
      products: [
        {
          name: " Pinot Noir, Gaul",
          id: "5704",
          price: "150.00",
          brand: "Matthias Gaul, Pfalz",
          category: "Shoppen/Vine",
          list: "Shoppen/Vine",
          quantity: "6"
        }
      ]
    }
  },
google-tag-manager
1 Answers

It has to do with the data layer having two products items; both having brand key/value pairs. You will have to specify through an index value, which one to pull.

Something along the lines of ecommerce.detail.products.0.brand if you are interested in the first products. Zero indexing is in play with the first item being represented by 0 instead of 1.

Here is an article by AnalyticsMania that explains it in more depth.

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