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What Criteria Cannot Be Used to Create A Custom Segment

What Criteria Cannot Be Used to Create A Custom Segment?

Written by: 

Sumi Rauf

Fact Checked By:  

Siddharth Jain

Published: 

15/03/2025

Last Updated: 

20/06/2026

They cannot be used to segment an organization based on behavior, demography, and other interactions in Google Analytics. Unfortunately, not all criteria can be used to create a custom segment. This session will then explain examples of what criteria cannot be used to create a custom segment, common segmentation problems, and segmentation best practices with which you can effectively segment your data.

Everybody has the right to create a custom segment through which data can be filtered based on many criteria. However, all criteria cannot be used in creating a custom segment. Users must understand how the limitations set by analytics tools such as Google Analytics affect the segmentation of data to avoid misinterpretations as well as misreporting. In this article, we shall discuss what criteria cannot be used to create a custom segment, best practices for doing so, and other related concepts.

Understanding Google Analytics custom segments

Before addressing What Criteria Cannot Be Used To Create A Custom Segment, one should know what a custom segment is. Google Analytics defines custom segments as a way can isolate and analyze subsets of their traffic according to user-defined rules. These segments allow businesses to optimize their marketing strategies and gain insights into specific user types.

There are restrictions on certain criteria for the creation of custom segments that users know about. These restrictions are crucial for the user when analyzing data.

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The Concept of What Criteria Cannot be Used to Create Custom Segments?

What criteria cannot be used to create a custom segment? But first, let’s understand segmentation. Google Analytics allows creating segments based upon the dimensions and metrics, which then helps analyze your users based upon engagement, conversion rates, or traffic sources.

What Criteria Cannot Be Used To Create A Custom Segment?

Metrics as Conditions for Segment Definition

The first criterion that can’t be used as a criterion for defining a segment is when metrics serve as a condition. Whereas dimensions serve to characterize the conditions for establishing segments, metrics–like session duration and bounce rate–are aggregate values and cannot directly enter a condition indicating that a certain session is in a certain segment.

Custom Calculated Metrics

Another important aspect that is one of the criteria not to be used to create a custom segment is a custom calculated metric. Custom metrics are defined metrics that do not operate alone as conditions within Google Analytics segmentation. 

Session-Level Conflict with User-Level

When configuring custom segments, every time a conflict arises between session-level conditions and user-level conditions, an error is triggered. This means that if we used session-specific conditions along with user-specific attributes, this data will not present itself.

Real Time Data

Real-time data is always changing and thus always variable, which renders it impossible to segment in terms of what criteria cannot be used to create a custom segment in Google Analytics.

Sampling Limitations

Another thing that makes these criteria weighty, as one of those criteria, is that when processing large datasets, Google Analytics may sample at varying levels. So if there was heavy sampling, then splitting this will give inaccurate results, and hence the reason most companies have the list of Google Analytics audits checklist to look at the sampling issue.

Improve Your Data Strategy – Uncover Key Segmenting Rules

Custom Segmentation in Brief

Measure Your Goal

Develop KPIs to measure, such as companies usually considering engagement, conversion rates, and traffic sources as a b2b web design agency.

Use Dimensions, Not Metrics

Segmentation criteria are not metrics but rather characteristics such as location, device type, source of visit, and so on.

Use Multiple Conditions Wisely

Do not put user-based conditions into a session-based. An example is how a website redesign agency may segment users before and after the website update to track improvement in performance.

Use Google Tag Manager for Realistic Tracking.

Using Google tag management consulting services, organizations would enhance data acquisition and thus segment more efficiently and accurately.

The Most Common Mistakes That People Make When Creating Custom Segments 

Very Complex Segments

Too much flexibility has a few conditions to can cause inaccurate and invalid interpretation of data. Key conditions would be user location and past bookings for such a travel website development company, which are not very complicated conditions.

Sample Ignoring 

The segment might be influenced to the extent that your report is based on sampled data. Google analytics consulting services can help address that problem.

Wrong Selection Condition 

Criteria like real-time data or calculated metrics, and also aggregations over session count, are criteria to be avoided in creating custom segments and should not be.

Best Practices in Creating Custom Segments

Knowing what criteria would not be applicable in making a custom segment is just as important as knowing the best practices for segmentation: 

  • Clear and consistent naming conventions.
  • Avoid overly complex conditions leading to data inaccuracies. 
  • Regular auditing and updating segments according to the new and current trends in data. 
  • Using Google Tag Manager for better data tracking and segmentation control.

Importance of Proper Segmentation

With proper segmentation, the business can:

  • Identify customers with high-value
  • Personalization and targeting can be better refined 
  • Optimize ad campaigns
  • Improve user experience on behavioral insights.

Realizing What Criteria Cannot Be Used To Create A Custom Segment saves businesses from making errors and further polishes their analytics strategy.

Advanced Segmentation Methods

Segmentation by Behavior

  • Separate according to the device, browser, and operating system to achieve a top technical performance.
  • Segmentation by Conversion
  • Identify the users with the highest conversions and the way they behave.
Improve Your Data Strategy – Uncover Key Segmenting Rules

Conclusion

An important aspect of data segmentation in Google Analytics comprises understanding what criteria cannot be used to create a custom segment. Doing so will help avoid mistakes most commonly associated with segmentation techniques, hiring experts through website maintenance services, and enhancing the chances of gaining insight into what will best be optimized for the organization. If there are still segmentation issues, for troubleshooting and possible approaches, one could refer to a Google analytics audit checklist.

Proper segmentation can help businesses improve marketing, target audiences, and generate results. Still, by avoiding segmentation pitfalls, the data remain accurate and reliable. Stay current in best practices and keep optimizing your segmentation strategies for the highest efficacy.

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FAQS

What Criteria Cannot Be Used to create a Custom Segment In Google Analytics?

The known fact is that the most effective criteria in properly defining a custom segment do not include PII, except if they are choosy, such as naming their names, giving out their email addresses, phone numbers, or even where geographically they are located. What Criteria Cannot Be Used to Create A Custom Segment? Furthermore, sensitive health data are also restricted along with financial and religious information.

What Criteria Cannot Be Used to create a Custom Segment For Remarketing?

Google restricts them from using the PII, the sensitive data, and the cross-site tracking information. What Criteria Cannot Be Used To Create A Custom Segment? The only remaining things are behavioral and demographic data that are allowed by Google’s policies.

What Criteria Cannot be used to create a Custom segment with Legislation in Mind?

Upon the guidance of stringent privacy laws, Google Analytics does not permit the use of any custom segmentations for PII, which is shorthand for personally identifiable information. Such information comprises names, addresses, or personal IDs. What Criteria Cannot Be Used To Create A Custom Segment? There are also restrictions on information concerning health, financial transactions, and biometric data.

What Are the Restrictions for Criteria That Cannot Be Used for Custom-Audience Segmentation for Campaigns?

A custom segment could not include PII, parameters that are not standard, or raw IP addresses. What Criteria Cannot Be Used To Create A Custom Segment? Google provides for aggregation and anonymization of user data, only for the purposes of analysis and targeting.

What Criteria Cannot Be Used In Creating A Custom Segment When Users’ Behavior is analyzed?

Google Analytics does not permit custom segments to contain tracking data on individual users, such as identifiers applied on a device level or raw IP addresses. What Criteria Cannot Be Used To Create A Custom Segment? All information pertaining to cross-site tracking is also not allowed so as to protect user privacy.

What Criteria Cannot Be Used To Create A Custom Segment When Segmentation Is Done for Audiences?

A custom segment should not include any PII that is sensitive or other personal financial information that can identify the individual. What Criteria Cannot Be Used To Create A Custom Segment? Google follows strict campaign policies to ensure the security of the user’s anonymity to satisfy compliance with privacy laws.

Sumi Rauf

Sumi Rauf is a seasoned digital marketing expert and the creative mind behind Digitalocus. With years of experience in SEO, analytics, and content strategy, Sumi specializes in helping businesses grow through innovative and data-driven solutions. Passionate about staying ahead of industry trends, Sumi is dedicated to delivering results that matter. When not optimizing digital campaigns, Sumi enjoys sharing insights on the latest developments in digital marketing.


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