---
schema_version: "1"
id: a31fb1108fd274dc7a71e62f3edb3aab5237747fc7cdcbed24efe6b2526b61f9
title: Track Assignment Rule and Locked Unit Changes
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/release-notes/264-0-0/rn_sales_assignment_rule_history.md
canonical_url: https://help.salesforce.com/s/articleView?id=release-notes.rn_sales_assignment_rule_history.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: aa82a356650ea9043e330334be2d1dbe08deef4f44fad0e2802ed0a000ca546d
description: In alignment history, review the assignment-rule criteria that changed and see when a rule is deleted. History also records when units are locked or unlocked. Previously, a rule event stated that something changed but did not include the criteria, and lock and unlock actions were not recorded.
products:
  - Cross Cloud
release: "264"
---
# Track Assignment Rule and Locked Unit Changes

In alignment history, review the assignment-rule criteria that changed and see when a rule is deleted. History also records when units are locked or unlocked. Previously, a rule event stated that something changed but did not include the criteria, and lock and unlock actions were not recorded.

**Where:** This change applies to Lightning Experience in Enterprise, Performance, and Unlimited editions. A Sales Planning add-on license is required.

**Why:** Alignment history includes this detail:

- History records create, modify, and delete as separate events. When several parts of a rule change, history lists the previous and current values for each change.
- History records a lock or unlock event for each area. It lists up to 10 unit names, then a count of any additional units, and it records the method, such as a legend action or a CSV import. A CSV import includes the file name.

**How:** Open the **History** tab on an alignment, or open Territory Planning Home, after a rule change or a lock or unlock.

![history events](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-release-notes-salesforce_release_notes-264-0-0-production-enus/550ba85b-db1a-4608-9cd4-9a65ec96e1fa/salesforce_release_notes/images/sales/historyevents.png)