google-analyticsanalyticsgoogle-analytics-apimetricsgoogle-analytics-4

How to retrieve Purchase Conversion Rate in Google Analytics 4?


I want to build an API to retrieve the Conversion Rates of Purchases via Google Analytics 4. (I understand after reading blogs these are now called 'Key Events')

I am new to GA4 so learning as I go.

I'm using the GA4 Query Explorer to test and build the request:

https://ga-dev-tools.google/ga4/query-explorer/

How do I specifically retrieve the 'Key Event: Purchase' conversion rate? Ideally as a percent but this can be calculated later if not possible?

I've set the parameters like this:

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And the response is this:

enter image description here

Am I missing anything? Are those numbers returned just the total purchases for each day? Would it be possible to retrieve the % Conversion Rate for Purchase? I'm guessing I would need to also track all users who visit the checkout page - how would I do this?


Solution

  • I got it working with the below JSON POST Request - this the E-Commerce Conversion rate with user scope. Amend the start and end dates to your requirements:

    URL:https://analyticsdata.googleapis.com/v1beta/properties/[YOUR PROPERTY NUMBER]:runReport
    
    
    BODY:
    
    
    {
        "dimensions": [
            {
                "name": "eventName"
            },
            {
                "name": "firstUserDefaultChannelGroup"
            }
        ],
        "metrics": [
            {
                "name": "ecommercePurchases"
            },
            {
                "name": "totalUsers"
            },
            {
                "name": "userKeyEventRate"
            }
        ],
        "dateRanges": [
            {
                "startDate": "yesterday",
                "endDate": "yesterday"
            }
        ],
        "dimensionFilter": {
            "filter": {
                "fieldName": "eventName",
                "inListFilter": {
                    "values": [
                        "session_start",
                        "purchase"
                    ]
                }
            }
        },
        "metricAggregations": [
            "TOTAL"
        ]
    }
    

    Hopefully this will help someone else.