---
schema_version: "1"
id: 20bb42c239a2c729401b94b1a28a81d54de2c72e20fcc31386a8df313f3a00fa
title: Segment Membership Triggers
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mc_pers_triggered_campaign_trigger_segment_membership.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mc_pers_triggered_campaign_trigger_segment_membership.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 028f39b9303370acec1ced57c0fad37ea7702266a7456c6b83b806d2078025f9
description: A segment membership trigger activates when a user joins or leaves a segment that you select. Marketing Cloud Personalization updates the segments in real time, so you can use the triggers to immediately respond to specific user actions. If you select multiple segments, the user must join or leave only one of the segments to qualify for the campaign.
products:
  - Marketing
  - Salesforce Personalization
release: "264"
---
# Segment Membership Triggers

A segment membership trigger activates when a user joins or leaves a segment that you select. Marketing Cloud Personalization updates the segments in real time, so you can use the triggers to immediately respond to specific user actions. If you select multiple segments, the user must join or leave only one of the segments to qualify for the campaign.

You can select this trigger type when you create a triggered campaign. For more information, see [Create a Triggered Campaign](https://help.salesforce.com/s/articleView?id=mktg.mc_pers_triggered_campaign_create.htm&release=264.0.0&type=5 "Use a triggered campaign to launch a journey when a specific action or event occurs. For example, send a promotion to a shopper who spent time viewing a product but didn’t purchase. You can recommend unread articles or products to a visitor who has spent more than 5 minutes reading about a topic. You can remind new users to complete onboarding steps, or alert sales reps when target prospects spend a certain amount of time on your site. When creating a triggered campaign, you can define when to trigger the campaign, which users to target, and which experiences to deliver.").

## Setup Requirements

Before you create a campaign with a segment membership trigger, build the Marketing Cloud Personalization segments that you need for triggers, campaign targeting rules, or experience rules. When you create or edit a segment, it can take up to 24 hours to calculate historical data. To ensure that the right audience sees the campaign, create the segment at least 24 hours before you publish. If the segment only references historical behavior or user attributes, Personalization can add or remove many users at the same time.

## Configuration Options

When you add a segment membership trigger to a campaign, you can add the segment name and set campaign frequency limits.

#### See Also

- [Create a Segment for Marketing Cloud Personalization](https://help.salesforce.com/s/articleView?id=mktg.mc_pers_segment_create.htm&release=264.0.0&type=5 "A segment is a real-time grouping of users, or accounts, based on criteria you define using a set of segment categories and rules.")
- [Create a Triggered Campaign](https://help.salesforce.com/s/articleView?id=mktg.mc_pers_triggered_campaign_create.htm&release=264.0.0&type=5 "Use a triggered campaign to launch a journey when a specific action or event occurs. For example, send a promotion to a shopper who spent time viewing a product but didn’t purchase. You can recommend unread articles or products to a visitor who has spent more than 5 minutes reading about a topic. You can remind new users to complete onboarding steps, or alert sales reps when target prospects spend a certain amount of time on your site. When creating a triggered campaign, you can define when to trigger the campaign, which users to target, and which experiences to deliver.")
- [Trigger Frequency](https://help.salesforce.com/s/articleView?id=mktg.mc_pers_triggered_campaign_trigger_frequency.htm&release=264.0.0&type=5 "Frequency limits apply to the number of triggers that Marketing Cloud Personalization sends for a user profile for a specified time period.")