Understanding Customer Profile Appends: A Marketer’s Comprehensive Guide

Effective email marketing is paramount in today's digital age. Customer Profile Appends can lead to better engagement and ROI.
Email Tagging


Effective email marketing is paramount to reach and engage customers in today’s digital age. One of the highlights aiding this strategy is Customer Profile Appends (CPAs), also known as Email Tagging or Customer Tagging. This comprehensive guide discusses the concept of CPAs and their role in enhancing your email marketing efforts and customer segmentation strategy. 

What is a Customer Profile Append? 

A Customer Profile Append is the process of appending outside data onto your list of email addresses, typically done to a list within an Email Service Provider (ESP) like Klaviyo, MailChimp, or Constant Contact. The additional data complements email-specific KPIs like opens and clicks, allowing savvy email marketers to build next-level segments, churn out more personalized creative, and build better-performing email campaigns. 

You may already be using a version of CPAs without even realizing it. If you use an ESP that integrates with your e-commerce store, that integration has appended your emails with KPIs like the Number of Orders, Last Purchase Date, and specifics around which products were purchased. However, CPAs can expand into many different areas, including demographics and buying behavior outside of what you are able to capture on your website alone. 

Importance of Customer Profile Appends in Marketing

There are several reasons why Customer Profile Appends should be an integral part of your digital marketing strategy: 

  • Improved Segmentation: With CPAs, you can divide your subscriber base into smaller segments based on a variety of factors like interests, behavior, or demographics, making your emails more relevant and engaging. 
  • Personalized Messaging: By appending subscribers’ profiles, marketers can send highly personalized messages, increasing engagement and conversion rates. 
  • Effective Campaign Analysis: Field-based tracking can provide significant insights into your target audience and your campaign’s effectiveness, helping you optimize future campaigns. For example, you can see who opened your latest deployment and circle back to the appended date, like age, to see the breakdown of those to engaged with your campaign. 
  • Enhanced Customer Experience: With more tailored and targeted communications, you improve the overall customer experience, resulting in better relationships and loyalty. 

How Does Customer Profile Append Work?

Customer Profile Appends can be done manually or automatically: 

  • Manual Appends: Marketers manually create custom fields (which could be called meta fields or profile properties in your ESP) based on their interactions and understanding of the customer or prospect. For instance, certain customers may be appended as ‘interested in product X’ based on their click-through rate on related content. This can also extend to uploaded CSVs filled with outside data. 
  • Third-Party Data Append: Services like LaunchPad’s Customer Profile Appends provide comprehensive demographic, interest, and purchase behavior data. Marketers can leverage this data to create highly personalized campaigns and boost customer retention. For example, LaunchPad can add Birth Month to ~90% of your customers, so you don’t have to spend resources trying to collect it. Use this field to send a special birthday discount to customers based on their birth month. Other interest-based or buying behavior fields are also available with LaunchPad. Target those likely to buy from certain product categories or have expressed interest in particular hobbies with resonating product options and imagery. You can use this enriched data to drive purchases within existing e-commerce, email, SMS, print-on-demand, social, digital, and automation platforms. 

Implementing Customer Profile Appends in Marketing Strategies

Here’s how you can successfully integrate Customer Profile Appends into your marketing workflows: 

  1. Define the Right Fields: Before anything else, determining which field will be useful is key. Examples might include product interest, location, purchase history, or responsiveness to past campaigns. Don’t succumb to “analysis paralysis” and include too much. Start with a few data elements and expand from there. 
  2. Assign Fields to Contacts: Once you’ve defined your chosen system, you’ll need to create custom fields where this imported data will live. This process can be manual, automatic, or a combination of both, and it will vary depending on your ESP. 
  3. Segment and Target: Use these custom fields to segment your email list and create targeted campaigns for each group. 
  4. Track and Adjust: Analyze how your segments respond to your campaigns. Based on these insights, it’s essential to monitor and adjust your strategy. 

Customer Profile Appends in Different Marketing Systems

Many popular email marketing platforms have capabilities for CPAs: 

With the right tools, a Customer Profile Append becomes an effortless task that can help your email marketing reach new heights. 

Utilizing LaunchPad Customer Profile Appends for Enhanced Segmentation

LaunchPad’s Customer Profile Appends can significantly enrich customer data, leading to more refined segmentation and improved utilization. Leveraging our database of 1,000+ fields over 250 million US consumers, LaunchPad appends your email list according to a data package you select or a custom package you create. 

You can use this sophisticated information to understand your customers better, tailoring campaigns according to diverse parameters such as demographics, shopping behavior, and specific interests. This empowers you to create highly personalized campaigns. Furthermore, LaunchPad’s data is compatible across various platforms your marketing team is familiar with, from e-commerce, email, SMS, to other automation platforms, ensuring seamless integration without requiring any complex migrations. 

With features like tailored data bundles for easy integrations, and the ability to import and export anywhere, LaunchPad opens a new world in audience segmentation, bringing in enhanced relevance to your marketing strategies. Visit LaunchPadASAP.com to learn more about how it can transform your email approach. 


Customer Profile Appends, while simple at its core, is a powerful tool that plays a pivotal role in the successful execution of your email marketing campaigns. Understanding its importance and use cases can significantly improve customer segmentation and deliver more personalized and effective communications. 

Adopt a Customer Profile Append strategy today and unleash the potential of your email marketing strategy! 

About LaunchPad

LaunchPad by LiftEngine is an automated customer data management, customer segmentation, and omnichannel marketing platform. We add 500+ fields of addressable data to what you already know about your customers so you can create intelligent target audiences. Boost AOV, Repeat Customer Rate, and decrease churn.

Share the Article

Don't know how to reach out to fathers this Father's Day? Check out our five ways to segment your audience for better results.
Elevate your Memorial Day marketing with segmentation! Discover strategies to honor the day and connect with customers authentically.
Don't know how to reach out to mothers this Mother's Day? Check out our five ways to segment your audience for better results.
Discover how to build effective segments in Klaviyo with our S.H.E.L.L. acronym. Optimize your email marketing for targeted, impactful campaigns.
Boost your Earth Day campaigns with strategic audience segmentation. Learn how to connect with eco-conscious consumers and amplify engagement.
Discover Easter segmentation strategies to boost sales & engagement! Target enthusiasts, families, crafters & more for a winning marketing campaign.