Apex Developer Guide

Apex Developer Guide
Release Notes
Getting Started with Apex
Writing Apex
Running Apex
Invoking Apex
Apex Transactions and Governor Limits
Using Salesforce Features with Apex
Actions
Apex Cursors (Beta)
Approval Processing
Authentication
Chatter Answers and Ideas
Use Cases for the CommercePayments Namespace
Connect in Apex
Moderate Chatter Private Messages with Triggers
Data Cloud In Apex
DataWeave in Apex
Moderate Feed Items with Triggers
Experience Cloud Sites
Email
External Services
Flows
Getting Flow Variables
Making Callouts to External Systems from Invocable Actions
Passing Data to a Flow Using the Process.Plugin Interface
Implementing the Process.Plugin Interface
Using the Process.PluginRequest Class
Using the Process.PluginResult Class
Using the Process.PluginDescribeResult Class
Process.Plugin Data Type Conversions
Sample Process.Plugin Implementation for Lead Conversion
Formula Evaluation in Apex
Metadata
Permission Set Groups
Platform Cache
Salesforce Knowledge
Salesforce Files
Salesforce Connect
Salesforce Reports and Dashboards API via Apex
Salesforce Sites
Support Classes
Territory Management 2.0
Integration and Apex Utilities
Debugging, Testing, and Deploying Apex
Apex Reference
Appendices
PDF

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Passing Data to a Flow Using the Process.Plugin Interface

Process.Plugin is a built-in interface that lets you process data within your org and pass it to a specified flow. The interface exposes Apex as a service, which accepts input values and returns output back to the flow.

We recommend using the @InvocableMethod annotation instead of the Process.Plugin interface.

  • The interface doesn’t support Blob, Collection, and sObject, data types, and it doesn’t support bulk operations. After you implement the interface on a class, the class can be referenced only from flows.
  • The annotation supports all data types and bulk operations. After you implement the annotation on a class, the class can be referenced from flows, processes, and the Custom Invocable Actions REST API endpoint.
  • Legacy Apex actions aren’t supported in auto-layout in Flow Builder. Legacy Apex actions are only available to be added in free-form in Flow Builder. Existing actions can be edited in both auto-layout and free-form mode.

Tip

When you define an Apex class that implements the Process.Plugin interface in your org, it's available in Flow Builder as a legacy Apex action.

Process.Plugin has these top-level classes.

  • Process.PluginRequest passes input parameters from the class that implements the interface to the flow.
  • Process.PluginResult returns output parameters from the class that implements the interface to the flow.
  • Process.PluginDescribeResult passes input parameters from a flow to the class that implements the interface. This class determines the input parameters and output parameters needed by the Process.PluginResult plug-in.

When you write Apex unit tests, instantiate a class and pass it into the interface invoke method. To pass in the parameters that the system needs, create a map and use it in the constructor. For more information, see Using the Process.PluginRequest Class.