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
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
Feature Parameter Metadata Types and Custom Objects
Set Up Feature Parameters
Use LMO-to-Subscriber Feature Parameters to Enable and Disable Features
Assign Override Values in Your LMO
Check LMO-to-Subscriber Values in Your Code
Track Preferences and Activation Metrics with Subscriber-to-LMO Feature Parameters
Hide Custom Objects and Custom Permissions in Your Subscribers’ Orgs
Best Practices for Feature Management
Considerations for Feature Management
AgentExchange App Analytics for First-Generation Managed Packages
Developing and Distributing Unmanaged Packages
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Note: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.

Use LMO-to-Subscriber Feature Parameters to Enable and Disable Features

Feature parameters with a data flow direction value of LMO to Subscriber are writable at your end and read-only in your subscriber’s org. These feature parameters serve as permissions or limits. Use LMO-to-subscriber feature parameters to enable or disable new features or to control how many of a given resource your subscriber can use. Or, enable features for a limited trial period. Assign values to LMO-to-subscriber feature parameters by updating junction object records in your LMO, and then check those values in your code.