First-Generation Managed Packaging Developer Guide

First-Generation Managed Packages
Why Switch to Second-Generation Managed Packaging?
Move to 2GP: Migrate Your Managed Packages with Ease
Register a Namespace for a First-Generation Managed Package
Create a First-Generation Managed Package Using a UI
Create a First-Generation Managed Package using Salesforce DX
Components Available in First-Generation Managed Packages
Behavior of Specific Metadata in First-Generation Managed Packages
Package and Test Your First-Generation Managed Package
Install a Managed Package
Install First-Generation Managed Packages Using Metadata API
Component Availability After Deployment
Install Notifications for Unauthorized Managed Packages
Resolve Apex Test Failures
Run Apex on Package Install/Upgrade
Run Apex on Package Uninstall
How Does an Uninstall Script Work?
Example of an Uninstall Script
Specifying an Uninstall Script
Uninstall a First-Generation Managed Package
Update Your First-Generation Managed Package
Publish Upgrades to First-Generation Managed Packages
Manage Licenses for Managed Packages
Manage Features in First-Generation Managed Packages
AppExchange App Analytics for First-Generation Managed Packages
Developing and Distributing Unmanaged Packages
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Example of an Uninstall Script

This sample uninstall script performs the following actions on package uninstall.
  • Inserts an entry in the feed describing which user did the uninstall and in which organization
  • Creates and sends an email message confirming the uninstall to that user

You can test an uninstall script using the testUninstall method of the Test class. This method takes as its argument a class that implements the UninstallHandler interface.

This sample shows how to test an uninstall script implemented in the UninstallClass Apex class.