---
schema_version: "1"
id: 260418d1e3fb99f50da73b98302ba07972bf3f4c2043580d6c4bd544f190077e
title: Automatic Opt-outs
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mc_moc_automatic_opt_outs.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mc_moc_automatic_opt_outs.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: c5ddc517f4f4fa27fbbc90df48d0e87a5f10c9592d8997461cdf223feaecee53
description: Some US wireless carriers produce a daily carrier deactivation file, which contains phone numbers that were deactivated from their network or ported from one carrier to another. Each day, Marketing Cloud Engagementautomatically opts these phone numbers out of active SMS and MMS subscriptions.
products:
  - Marketing
  - Marketing Cloud Engagement
release: "264"
---
# Automatic Opt-outs

Some US wireless carriers produce a daily carrier deactivation file, which contains phone numbers that were deactivated from their network or ported from one carrier to another. Each day, Marketing Cloud Engagementautomatically opts these phone numbers out of active SMS and MMS subscriptions.

This process applies to US short codes only. Salesforce reserves the right to apply information from carrier deactivation files as described above in its sole discretion, but shall not be liable for any failure to do so.

View a list of mobile numbers with subscriptions that were automatically opted out during a selected time period.

1. Go to Reports under Analytics Builder.
2. Click **View Catalog**.
3. Search for SMS.
    
    ![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-mktg-mc_mobile_studio-264-0-0-production-enus/26e7f9fa-f44c-489b-9b21-135d26904a29/images/icon_note.png)
    
    Note Make sure that you search for the term SMS instead of filtering. The SMS filter doesn’t show the SMS Deactivation Summary report.
4. Select the **SMS Deactivation Summary** report.
5. Select a date range, culture code, and time zone.
6. Run the report.