---
schema_version: "1"
id: 75b1c9df12af5a04fe1059019b8266b0699b860d627595580b876b6775bee785
title: Block Internal Traffic from Logs
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mc_pers_logs_blocking_internal_traffic.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mc_pers_logs_blocking_internal_traffic.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 219a780ee665521563c4d628ac0aa2521f8025fe2b11dc4fd99240068d86a91b
description: You can block internal traffic and behavior from Marketing Cloud Personalization’s logs. For example, you can block internal users who log in to your customer's portals, such Customer Success employees logging in for training. Blocking is by user ID, which can differ from username and email address.
products:
  - Marketing
  - Salesforce Personalization
release: "264"
---
# Block Internal Traffic from Logs

You can block internal traffic and behavior from Marketing Cloud Personalization’s logs. For example, you can block internal users who log in to your customer's portals, such Customer Success employees logging in for training. Blocking is by user ID, which can differ from username and email address.

### Required Editions

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small permission">
        <colgroup>
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        <thead class="slds-text-title_caps ">
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            <th scope="colgroup" class="slds-cell-wrap" colspan="2" style="text-align:center;vertical-align:top;" id="d84798e38">Permissions
              Needed</th>
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        <tbody>
          <tr class="">
            <td data-label="Permissions Needed" class="slds-cell-wrap" style="vertical-align:top;" headers="d84798e38 ">To block internal traffic:</td>

            <td class="slds-cell-wrap" style="vertical-align:top;" headers="d84798e38 ">A role with Administrator permissions</td>

          </tr>
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      </table>

1. From the bottom section of the main navigation, select **Settings** | **User Blocklist**.
2. Enter a user ID into the field.
    
    ![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-mktg-mc_personalization-264-0-0-production-enus/16bf1f60-f44c-4260-a56e-f052cfe515a3/images/icon_note.png)
    
    Note User IDs are case-insensitive.
3. Click **Add User ID**. The user ID appears in the User ID table.
    
    ![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-mktg-mc_personalization-264-0-0-production-enus/16bf1f60-f44c-4260-a56e-f052cfe515a3/images/icon_note.png)
    
    Note Personalization stops tracking the users from the moment you add them to the blocklist. Data recorded before the block can’t be removed.