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Jul 19, 2018
by Saurabh Kumar
Google Analytics shows two types of data in its reports. These types of data are called dimensions and metrics. A dimension is a trait of the visitors on the website. Such traits include age, city, gender, keyword, source, browser, operating system, and devise category. A metric is a number which measures the characteristics of a dimension. If you take, source, the characteristics would be the number of sessions, new users, bounce rate, new sessions, etc. These are the metrics which you would find a Google Analytics report.
Custom dimensions and metrics in Google Analytics are the same as the default dimensions and metrics in an Analytics account. The only difference is that you create custom dimensions and metrics yourself. This option lets you collect and analyse data that Analytics doesn’t track automatically. With this option, you can combine Analytics data with non-Analytics data. This can be explained better with the below-mentioned points –
-For game developers, metrics like ‘high score’ or ‘task completion’ might be more relevant than other default settings like ‘screen views’. Case in point here is the custom metric, using which you can effectively track your progress against other relevant metrics in a seamless manner and easy-to-read custom reports.
-You can use custom dimensions as ‘segments’ in standard reports.
-Region, gender, traffic source, etc. are some of the predefined dimensions and bounce rate, pageview, etc. are some of the predefined metrics.
Difference 1: While dimensions and metrics define the characteristics of your website visitors, they differ in the way they are configured, processed, collected, and reported in Google Analytics. For instance, you cannot use metric as a dimension and/or vice versa in Google Analytics via API.
Difference 2: A dimension provides context to a metric in Google Analytics. Therefore, a standalone metric renders no meaning to a report in Google Analytics. Therefore, the metric session will make sense only when it is used with dimensions like ‘country’, ‘user type’, etc.
Difference 3: Metrics are reported under three categories – behaviour metrics, acquisition metrics, and conversion metrics – unlike dimensions.
Predefined dimensions are dimensions which can found in a Google Analytics report by default. They are also ready to use and do not need any customization. On the other hand, custom dimensions are defined by users as per their requirements. Custom dimensions are needed when you need to measure the characteristics of a user which cannot be done by any predefined or pre-existing dimensions. In such a case, you need to create and use your own dimension to get the result you want.
For example, you can produce a custom dimension to find and collect keywords which stemmed from a phone call on your website. Likewise, you can also create a custom dimension for logged in users, logged out users, website usage data by authors, etc. Thus, with the help of custom dimensions, you can collect the data which Google Analytics does not collect by itself.
The lifecycle of custom dimensions has four stages as explained below –
Google has stressed that their enterprise analytics are designed to assist e-commerce sites in order to create better customer experiences. This simply means that you need to get into granular details before making a switch to the paid version of Google Analytics. The main difference between the paid and free version of Google Analytics lies in how each product deals with data and default integration. With a standard Google Analytics account, it is possible to create 20 custom metrics and 20 custom dimensions. On the other hand, a 360 Google Analytics account can give you about 200 of each. Additionally, with a standard Google Analytics, you can get up to 10 million hits in a month as opposed to 1 billion+ hits with a GA 360 as per a specific tier. Here, the main difference between the two versions is the total number of ‘hits’. You can look at it this way – if you have thousands of users, then you can easily reach your ‘hit-limit’. In such a situation, you can experience inconsistencies in your data collection. Google has also been known to remove some of the key data because the ‘hits’ reached a limit.
Thus, getting a free or paid version depends upon the size of your business and the total number of users you want to track. It makes sense for large businesses, such as e-commerce sites, to go for the paid version of Google Analytics since they have to track a large number of ‘hits’ in a month as opposed to a small business.
So, keep these guidelines in mind while managing custom dimensions in Google Analytics.