Guide to Mixpanel Implementation

Prerequisite: Guide to Mixpanel Basics

This guide assumes that you already have a foundational understanding of the Mixpanel data model. If you haven't already done so, please take time to review the Guide to Mixpanel Basics before proceeding with this guide.

Implementation refers to the process of configuring your product to send data to a Mixpanel project. The implementation process is highly customizable – it's up to your team to decide what data should be sent to Mixpanel, and your team is responsible for adding the appropriate tracking code to do so.

A proper Mixpanel implementation will provide you with comprehensive user engagement data that can be used for powerful analysis and targeted outreach. However, a poor implementation can lead to missing data, or even worse, inaccurate data resulting in misguided business decisions.

Ultimately, the value that you get out of Mixpanel is dependent on the quality of your implementation. This guide is designed to walk you through the necessary steps to ensure that your Mixpanel implementation will set your team up for success.

Mixpanel Implementation Course

Are you more of a visual learner? If so, you'll definitely want to check out our Mixpanel Implementation Course which contains 3 hours of video lessons exploring many of the same topics covered in this guide, but in much more depth.

Phase 1: Planning

Too often, new Mixpanel users are so eager to start collecting data that they jump straight into the process of adding Mixpanel tracking code without first thinking through a solid implementation strategy. They end up wasting more time trying to fix problems with their implementation than if they just invested the time to properly plan their implementation beforehand. In this section, we'll discuss best practices to keep in mind when planning out your implementation.

Assemble A Team

Unless you're part of a one-person company, chances are there are other people at your organization that would benefit from having the ability to analyze the type of user engagement data that Mixpanel can collect. Therefore, we always recommend that you begin by assembling a team representing the various departments at your organization and have each person identify the user actions and details that impact their key metrics.

Determine your Goals and Metrics

Consider what your business wants to achieve and how data can help you get there. Mixpanel creates a framework to help you find your “Northstar Metric” and the more granular metrics that your team can focus on to drive your business goals. You can access the How to Determine Your Goals and Metrics below and find the full metrics framework inside.

How to Determine Your Goals and Metrics

How to Determine Your Goals and Metrics is written to help you define your metrics and clarify the relationship among them so each team understands how their metrics connect to the overall product performance.

Track or Not to Track?

It’s enticing to track everything and hope that the data provides insight on how your business is performing. This may provide plenty of data, but this can also create too much noise. You’ll end up combing through a lot of information to find what you need. Use the framework that you’ve completed from the Guide to Product Metrics to determine what to track.

That said, when planning your Mixpanel implementation, you will inevitably have times when you find yourself debating whether or not a user action or detail is important enough to track with Mixpanel. When in doubt, track it! This way, the data will be available to you should you decide at a later point in time that you do in fact want to analyze it.

When the data in question deals with sensitive user information, it's best to be cautious and not track the data with Mixpanel. Please refer to our section on Data Security and Privacy for more information on this topic.

Event Depth

When it comes to determining what user actions to track, you want to make sure that your events are not too specific or too broad. To illustrate this, let's run through a couple quick examples in which we'll assume we are setting up an implementation for a music streaming application.

Tracking an event such as "Hip-Hop Song Play" is too specific. This approach would result in different events for every single type of music genre which would make it cumbersome to perform a rather simple query like finding the total number of songs played. Instead, it is better to track a "Song Play" event and store the genre in an event property that could then be used to filter or breakdown our analysis.

Tracking an event such as "Button Click" is too broad. It groups together completely unrelated actions such as clicking on the logout button or clicking on a song's play button. Instead, it is better to track separate events that describe the action represented by the button click (e.g. "Logout", "Song Play").

Take Advantage Of Properties

Properties are the cornerstone of a quality Mixpanel implementation as they allow you to slice and dice your data to find interesting segments of users or actions. It is important to send as much detail as you can with every event and user profile in the form of properties, so long as you stay within the property limits. To help in this effort, Mixpanel client-side SDKs (more about this in the next section) will automatically collect a set of default properties and send them to your project.

Pro Tip: Super Properties

Super properties are a type of event property that you can set once to automatically attach to every event you’re tracking. They are particularly useful for tracking how characteristics about a user change over time. For more details, please refer to this article.

Reserved Properties

Some property names are reserved for use by Mixpanel and used in special ways. It is important that you review the list of reserved properties and make sure that you name your properties accordingly. This is particularly important if you plan on using Mixpanel to send messages to your users, because Mixpanel Messages rely on reserved properties (e.g. $email, $phone).

Make An Implementation Spec

An implementation spec is a document that details the exact events and properties that need to be implemented. There is not one specific format for setting up an implementation spec – it could be a spreadsheet, text document, or even a set of napkin sketches if you want – so long as it defines a clear blueprint for a developer to follow when implementing Mixpanel.

A well-defined implementation spec should include the desired event and property names as well as the property data types. An implementation spec helps ensure that all of the necessary data gets sent to your Mixpanel project in the correct format, but it also serves as a source of truth that can be referenced after the implementation process to understand what data is being collected.

When filling out your spec, It’s important to think carefully about how to name your data. It should be clear to everyone what data is collected and how it is collected. Mixpanel has summarized some key points on how to go about naming your data.

Guide To Setting Up An Implementation Spec

Looking for some inspiration on how to setup your implementation spec? Check out this guide for implementation spec best practices as well as implementation spec templates for industry-specific verticals.

How to Name Your Mixpanel Data

If you ever have trouble with how your events should be named or titled, this article shows you how to connect actions to event names.

Phase 2: Development

With a plan in place, it's time to start sending data to Mixpanel. In this section, we'll identify several best practices and key concepts related to this phase of the implementation process.

Creating A Project

Before you start adding Mixpanel tracking code, you first need to create a project so that you have somewhere to send your data. This can be done directly within the Mixpanel UI:

Test and QA

When you’re ready to send data to your Mixpanel project, set up a development or staging project to test it. Things often go wrong the first time you deploy your implementation, and a development or staging project can help catch errors and make adjustments. Events in Mixpanel are immutable, which means there isn’t an easy way to separate the testing data from the live data, therefore keeping the test data in a separate project keeps all the production data clean. Once you and your team feel comfortable with how your data collection scheme, then you can deploy your implementation on a production project to collect live data on your users.

Set Your Project Timezone

By default, all new Mixpanel projects are set to Pacific time. If you are based in a different timezone, you will want to update your project settings accordingly. For a walk-through of how to do this as well as information about the importance of setting a project's timezone, please refer to this article.

Sending Data To Mixpanel

Warning: Tracking Should Be Handled By A Developer

Tracking mistakes can produce inaccuracies in your analytics as well as unintended issues in your product. To help avoid these problems, please make sure that your Mixpanel tracking is carried out by a qualified developer(s) that can follow the guidelines outlined in the Mixpanel Developer Docs.

Mixpanel maintains three API endpoints for the purposes of ingesting data into a project:

  1. api.mixpanel.com/track – track events less than 5 days old
  2. api.mixpanel.com/import – track events more than 5 days old
  3. api.mixpanel.com/engage – make updates to user profiles

These endpoints will only accept requests that adhere to the technical specifications defined in the Mixpanel Developer Docs.

While you can send data to Mixpanel via HTTP requests to the various API endpoints, a vast majority of Mixpanel implementations are built using one of the Mixpanel SDKs. These SDKs, which are offered in a wide variety of major client-side and server-side programming languages, contain functions that simplify the process of sending data to a Mixpanel project. Furthermore, the client-side SDKs will automatically collect certain bits of information (e.g. user's location, device details) and pass them along as default properties with all events and profiles that get sent to your Mixpanel project.

Identity Management

Mixpanel is a user analytics platform, which means that all tracking is performed at the individual user level. In other words, each event that gets sent to Mixpanel should be associated with a specific user. The way Mixpanel determines which user performed a particular event is through a special event property called distinct_id which serves as a unique user identifier.

When building out your Mixpanel implementation, it is essential that you include the necessary logic to ensure that a user's distinct_id remains constant throughout their lifetime, even as they switch between different devices or platforms. This concept, which we refer to as identity management, is one of the most important yet often overlooked parts of the Mixpanel implementation process.

Identity Management: Best Practices

Check out this article for best practices and things to look out for when configuring identity management within your Mixpanel implementation.

Phase 3: Post-Development

The implementation process should not end once the track calls have been added into your product's source code. Instead, this should kick off a post-development process to ensure that the data being collected is accurate and well-documented.

Accurate Data

One way to know that the collected data is accurate is to start building reports early and ask the questions necessary to evaluate the KPIs you’ve set for your business. If the questions you’re asking against your data do not yield the answers you’re looking for, you can iterate on your implementation and provide more data as you need.

Quality Assurance

Mixpanel offers a couple built-in tools to help you QA your implementation:

Live View – This tool displays events that are sent to your Mixpanel project in real-time. You can use Live View to verify that events are being tracked as expected and contain all of the properties you wish to be captured.

Explore – This report lets you view all of the user profiles within your Mixpanel project. You can use Explore to verify that the appropriate user properties are being collected and that all events for a specific user are tied to the same profile.

Document Your Implementation

After you have successfully built out and tested your Mixpanel tracking, the final step is to document your implementation. This will help individuals at your company who may not have been a part of the implementation process to understand what data is being collected, which in turn will empower them to run analyses within Mixpanel.

The easiest way to to do this is through Lexicon, which allows you to add event and property descriptions as well as other useful metadata that will be surfaced directly within the Mixpanel UI.

Wrap Up

It's important to note that implementation should be seen as an ongoing process – it's not something that should be setup once and then never touched again. Instead, you should regularly update your Mixpanel implementation to reflect any changes to your product or your business metrics. When you do eventually revisit your implementation to add additional tracking or make changes to existing tracking, just make sure to follow all the guidelines discussed here in this guide.

Next Step

This is just one of a series of Getting Started guides to help you as you embark on your Mixpanel journey. Once you have data populated in your Mixpanel project, we'd recommend that you move on to the next guide in this series:

Guide to Mixpanel Analysis

Learn how to use the built-in Mixpanel reports and features to gain valuable insights from your user data in our Guide to Mixpanel Analysis.

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