---
schema_version: "1"
id: e4f9f0c50ecbd3e59dac68f95a0fc8a08cbafa2d3bea8f1faf9a7133219d1efd
title: Multiple Identity Resolution Rulesets in Segments
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/data/264-0-0/c360_a_identity_resolution_in_segments.md
canonical_url: https://help.salesforce.com/s/articleView?id=data.c360_a_identity_resolution_in_segments.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 84c511ef14eb7d69856eb3be0b363065ae19f2c3c9659f9ec1aa8c2308f19c57
description: Compare the impact of different identity resolution rulesets for the same entity on segment population counts. After using identity resolution to create different rulesets for the same entity, entities and attributes created by both rulesets are available in segmentation. Use attributes from both rulesets to validate, or A/B test, different population counts. Entities and attributes names include the Ruleset ID at the end when you select what entity to Segment On or add attributes in the attribute library.
products:
  - Data 360
release: "264"
---
# Multiple Identity Resolution Rulesets in Segments

Compare the impact of different identity resolution rulesets for the same entity on segment population counts. After using identity resolution to create different rulesets for the same entity, entities and attributes created by both rulesets are available in segmentation. Use attributes from both rulesets to validate, or A/B test, different population counts. Entities and attributes names include the Ruleset ID at the end when you select what entity to Segment On or add attributes in the attribute library.

Use Identity Resolution to create two different rulesets for the Individual entity. For the first ruleset, use strict match rules. For the second ruleset, use more general match rules and add Ruleset ID fzzy. To build a new segment based on the fzzy ruleset, Segment On **Unified Individual fzzy**.

![New segment modal with Segment On field value Unified Individiual fzzy](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-data-data_cloud-264-0-0-production-enus/f3569962-3c9b-4f83-9d0c-b6a574e785da/data_cloud/images/cdp_multiple_identity_resolution_new_segment.png)

![Tip](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-data-data_cloud-264-0-0-production-enus/f3569962-3c9b-4f83-9d0c-b6a574e785da/images/icon_tip.png)

Tip Use the second ruleset as a temporary way to create the best ruleset for your data, and then delete the second ruleset. Unified profiles from all rulesets count toward your entitlement limit.