Process Builder can perform almost all of the actions that are available for Workflow Rules, and it also contains some new actions. It doesn't support outbound messages, among other things. With Process Builder, you can perform the following actions:

• Apex: This allows you to call an Apex class that contains an invocable method.
• Create a Record: Using this, you can create a record.
• Email Alerts: Use this to send email alerts.
• Flows: Use this action to call a Flow from the Process.
• Post to Chatter: Use this to post a textpost on a Chatter group, a record, or a user's wall.
• Processes: Use this action to call an existing process from another process.
• Quick Actions: Use this action to call a Chatter global action or object specific action; for example, log a call, create a record, and so on.
• Submit for Approval: Use this action to submit a record to an Approval Process.
• Update Records: This allows you to update any related records.

In this and the following chapters, we will see each action in detail.