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Meet Flow Builder

Learning Objectives

After completing this unit, you’ll be able to:

  • Describe the building blocks of a flow.
  • List the categories of flow elements.

Ready to Get Hands-on with Flow Builder?

Launch your Trailhead Playground now to follow along as we explore Flow Builder in this unit. To find your Trailhead Playground, open a unit or badge with a hands-on challenge (such as the 'Learn About Flow Variables' unit of this badge), scroll down to the challenge, and click Launch. For example, you can find a hands-on challenge in the 'Learn About Flow Variables' unit of this badge.

The Flow Builder User Interface

When you build flows, you work in Flow Builder.

To get to Flow Builder, go to Setup, enter Flows in the Quick Find box, and select Flows. To create a flow, click New Flow.

The Select Type window, showing the flow types Screen Flow, Schedule-Triggered Flow, Autolaunched Flow, Record-Triggered Flow, and Platform Event-Triggered Flow.

The Select Type window shows the types of flows you can create. Do most of those types sound familiar? They match the automation types we mentioned earlier in this module.

Select a flow type, click Create, and say hello to Flow Builder. Let’s take a look at its parts and pieces.

The Flow Builder user interface, showing the toolbox, canvas, and button bar.

Toolbox (1)

The toolbox lists the elements and resources you’ve built in your flow. You can also create resources such as variables, formulas, and choices to use in your flow.

Canvas (2)

The canvas is the working area, where you build a flow by adding elements. Adding elements to the canvas creates a visual diagram of the flow. 

Button Bar (3)

The button bar provides information about the flow, such as:

  • Whether the flow is active or not
  • How long ago the flow was saved
  • Whether the flow has any warnings or errors

The button bar also contains some features that let you control the flow.

  • Use Toggle Toolbox to show the Toolbox. Click it again to hide the Toolbox.
  • Use Select Elements to select multiple elements, so you can copy them to a different spot in the flow
  • Undo and Redo
  • Use Show Error to show the flow’s errors and warning messages. Click it again to hide the Errors and Warnings pane.
  • Use Settings to open the Version Properties window, where you can rename this version of the flow and configure how it runs
  • Use Auto-Layout/Free-Form to choose the layout style for the flow (We recommend using Auto-Layout whenever possible, because it has additional features. Plus, all of the examples in this badge show Auto-Layout!)
  • On record-triggered flows, use View Tests to create test scenarios that run automatically when the flow runs. These tests confirm that the flow is working as intended, and show custom error messages when it doesn't.
  • Save and Save As New Version
  • Use Activate to make the current version of a flow the version that users encounter (Because a single flow can have multiple versions, you can activate a specific version, even if it’s not the most recent version.)

Finally, the button bar also includes two buttons for running a flow: Run and Debug.

  • Run runs the most recent saved version of the flow that you have open. If you have unsaved changes, they aren’t included in the run.
  • Debug lets you test the most recent saved version of the flow by feeding it sample data and reviewing what it does when it runs, so you can verify that the flow is doing what you want it to do.

Flow Building Blocks

Flows use three building blocks: elements, connectors, and resources.

Three parts of Flow Builder corresponding to the description that follows.

  • Elements are nodes on the canvas that make things happen. To add an element to the canvas, click Add element.
  • Connectors are lines on the canvas that define the path the flow takes when it runs. They tell the flow which element to execute next.
  • Resources are containers that don’t appear on the canvas, but are referenced by the flow’s elements. Each resource contains a value or a formula that resolves to a value. For example, your flow can search for an account’s ID, store that ID in a variable, and later use that variable to tell the flow which account to update.

Elements

Each element is a step that tells the flow what to do, and each type of element does something different. Think of flow elements as three types.

Element Type

What It Does

Interaction

Interacts with users

Data

Interacts with data

Logic

Interacts with the flow itself

Let’s consider each type of element.

Interaction Elements

The flow elements in the Interaction category: Screen, Action, and Subflow.

Flows can interact with users by presenting questions and information on a screen, or by sending various types of communications. The Screen element and the Action element make these interactions possible.

The Screen element can display data to users or collect information from them. Choose from a treasure trove of standard components to customize how users interact with your flows. You can display text or images, ask users to enter text, have users make a choice from radio buttons or a dropdown, and more. You can even use a Screen element to ask users to upload a file.

An example flow screen that asks a user to create a new contact.

Plus, if you need more interaction options in your flow screens, you can install third-party components or work with a developer to build custom components.

The Action element can do many things, but most notably, it allows your flow to reach out to your users, associates, customers, and even external systems. This element can create Chatter posts, send emails, submit records for approval, send mobile notifications, and push outbound messages. And if you need your flow to do more, you can have a developer build custom actions in Apex.

Finally, the Subflow element lets you call an autolaunched flow from another flow. Instead of interacting with users, it interacts with other flows.

Data Elements

The flow elements in the Data category: Create Records, Update Records, Get Records, and Delete Records.

Data elements instruct the flow to interact with records in the Salesforce database. Use data elements to look up, create, update, and delete Salesforce records. You can work with one record at a time, or many records all at once.

Logic Elements

The flow elements in the Logic category: Assignment, Decision, Loop, Collection Sort, and Collection Filter.

After you collect the data you need, what do you want to do with it? With logic elements, you can evaluate that data and manipulate it according to your business requirements. You can:

  • Create multiple paths that the flow can take, and define criteria for when the flow takes each path.
  • Update temporary data so you can use it later in the flow.
  • Create a looping path to work with groups of data.
  • Pause the flow until a specified time.
  • Change the contents or order of a collection of data.

Logic operates only in the flow. If you use logic elements to change data in your flow, the resulting data is accessible only until the flow finishes running. To store data outside the flow and access it after the flow runs, you use a data element or an action that sends the data to an external system.

Connectors

Connectors define the path that the flow takes as it runs. They tell the flow which element to execute next. There are different types of connectors that tell the flow to take a different path in certain circumstances, but most of the time, the flow follows its connectors from one element to the next. You can learn more about these other connectors in other Flow badges.

Flow Resources

Resources are containers that you reference throughout your flow. You can create resources as needed, but many elements create them for you. Each resource can store a single value, a formula, a formatted block of text, a whole record with all of its values, or even a collection of records. You learn more about the most common type of resource, called variables, in the next unit.

Keyboard Shortcuts

Use keyboard shortcuts to quickly navigate your flow. Here are the keyboard shortcuts on Windows.

Action

Keyboard shortcut

Zoom in

CTRL+=

Zoom out

CTRL+-

Zoom to fit

CTRL+Alt+1

Zoom to view

CTRL+Alt+0

Switch focus to another panel

F6

Here are the keyboard shortcuts on Mac.

Action

Keyboard shortcut

Zoom in

Command+=

Zoom out

Command+-

Zoom to fit

Command+Option+1

Zoom to view

Command+Option+0

Switch focus to another panel

F6

Plan Out the Flow

Now that we’ve learned a bit about the types of elements that flow offers, let’s think back to Flo’s request. She’s tempted to jump right into Flow Builder, but she knows it’s best to map requirements to a plan before she starts building the flow.

Note

Whichever tool you use, it’s important to plan out your business process before you try to automate it. This helps you to identify potential problems before you encounter them, plan for any additional resources you may need, and possibly shift gears to an entirely different solution before getting in too deep.

Requirement

Element Type to Use

Collect information from user (contact’s first name, last name, and account) and ask what to do if a matching contact exists.

Interaction (Screen)

Look for a matching contact record.

Data (Get Records)

Check if a matching record was found and follow the corresponding path:

Logic (Decision)

If no match exists, create the contact.

Data (Create Records)

If a match exists, update that contact.

Data (Update Records)

Rejoin the branches together and then confirm what the flow did in Chatter.

Interaction (Action)

Confirm that the flow is done.

Interaction (Screen)

Resources

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