Creating an invocable method in a nutshell: First you write an apex class with @invocable method (label and description) and whatever code you want the apex to do (easy, right?) Then make your Flow including your input and output variables. Then add an Apex action in Flow to send/receive those variables.
Full Answer
What is @invocable method in Salesforce?
@InvocableMethod(label='Update Account' description='Update the list of accounts to the specified account IDs.') The Invocable method must be static and public or global, and its class must be an outer class. Only one method in a class can have the InvocableMethod annotation.
What are the requirements for an invocable method?
The invocable method must be static and public or global, and its class must be an outer class. Only one method in a class can have the InvocableMethod annotation.
Can we use invocablemethod in a package?
We can use InvocableMethod in packages, but once we add an Invocable method, we can’t remove it from later versions of the package. Public Invocable methods can be referred to by flows and processes within the managed package. Global Invocable methods can be referred to anywhere in the subscriber org.
What are @invocable actions in flow builder?
Invocable actions give developers an opportunity to write any complex logic in Apex and expose it into Flow Builder. In order to call an Apex method from Flow you will have to annotate that method with @InvocableMethod. This code sample shows an invocable method with the generic sObject data type.
How do I use Invocable method in Salesforce?
Use the InvocableMethod annotation to identify methods that can be run as invocable actions. If a flow invokes Apex, the running user must have the corresponding Apex class security set in their user profile or permission set. Invocable methods are called with REST API and used to invoke a single Apex method.
How do you use Invocable flow method?
The invocable actions mechanism allows to create custom code and package it into components / actions available in declarative tools, such as Flow. You provide input values that the apex class does something with, and it gives you output values.
How do you use Invocable apex?
0:423:38How to Invoke Apex from Flows Using InvocableMethod AnnotationYouTubeStart of suggested clipEnd of suggested clipFirst we need to create an apex class in order to demonstrate. We have created a simple apex classMoreFirst we need to create an apex class in order to demonstrate. We have created a simple apex class that gets the account names based on a search on the account ids.
What is Invocable variable in Salesforce?
The InvocableVariable annotation identifies a class variable used as an input or output parameter for an InvocableMethod method's invocable action.
How do I create an Invocable flow in Salesforce?
Creating an Invocable Action1) Adding an InvocableMethod interface to one of the methods. ... 2) Defining and marking the variables that will be exposed as input and output variables. ... 1) Choose names for your Apex Class with clarity in mind. ... 2) Put your input and output properties in Request and Response inner classes.
How are Invocable variables used in flow?
Creating an invocable method in a nutshell: First you write an apex class with @invocable method (label and description) and whatever code you want the apex to do (easy, right?) Then make your Flow including your input and output variables. Then add an Apex action in Flow to send/receive those variables.
What is use of Invocable?
Use the InvocableMethod annotation to identify methods that can be run as invocable actions. Invocable methods are called with the REST API and used to invoke a single Apex method. Invocable methods have dynamic input and output values and support describe calls.
Is Invocable method asynchronous?
Invocable method making an Continuation(Asynchronous) REST call.
Does Invocable method return value?
The return values from Invocable methods makes sense for flows and REST API . Return values can be fed back to flows as variables .
What are Invocable actions Salesforce?
What are Invocable Actions. The invocable actions mechanism allows to create custom code and package it into componentes/actions available in declarative tools, such as Flow. The idea is simple. You provide input values that the apex class does something with, and it gives you output values.
Can we do callout from Invocable method?
For invocable actions that perform callouts, you can now add a callout attribute to the invocable Apex method annotation. With this information, a flow calling the action knows how to manage the transaction at run time. Where: This change applies to Lightning Experience and Salesforce Classic.
How do you make an Apex class Invocable?
Create a custom global or public Apex class to implement your data type, and make sure your class contains at least one member variable with the invocable variable annotation. You can use invocable methods in packages, but once you add an invocable method you can't remove it from later versions of the package.
When to use @invocablemethod?
We use @InvocableMethod annotation, whenever we want to invoke an apex method from the Process Builder then that method must be declared as @InvocableMethod, otherwise it can’t be accessed in Process Builder.
How many methods can have an invocable annotation?
Only one method in a class can have the InvocableMethod annotation.
Can you use an invocable method in packages?
We can use InvocableMethod in packages, but once we add an Invocable method, we can’t remove it from later versions of the package.
Can you use other annotations with a variable?
Other annotations can’t be used with the InvocableVariable annotation.
Can an invocable variable be a non-member variable?
Other annotations can’t be used with the InvocableVariable annotation. Only global and public variables can be invocable variables. The invocable variable can’t be one of the following: A non-member variable such as a static or local variable. A property.
Example One: Send One Id, Get Back a Record Collection
In this Flow, I tried using an Apex Action to avoid having a DML statement inside a loop. You may notice that there is also a loop inside another loop. So this Flow is not an example I want you to go out and copy (I ended up moving the whole thing to Apex), but I got the Apex Action to work and I learned a ton!
JessieRymph
Jessie is Success Content Specialist at Salesforce.org. All opinions expressed on this blog are her own or those of the contributors. For fourteen, she has specialized in CRM, email marketing and fundraising platforms. Jessie co-led the Seattle Salesforce Non-Profit User Group in 2015-2016.
Invocable Actions
Invocable Method
- In order to call an Apex method from Flow you will have to annotate that method with @InvocableMethod. This code sample shows an invocable method with the generic sObject data type.
InvocableMethod Considerations
- The invocable method must be static and public or global, and its class must be an outer class.
- Only one method in a class can have the InvocableMethodannotation.
- Other annotations can’t be used with the InvocableMethodannotation.
- There can be at most one input parameter and its data type must be one of the following:
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