The administrator at AW Computing wants to send off client welcome tasks and a welcome email to the primary contact automatically when an Opportunity…

Process Builder is the most suitable tool for this scenario. It can be configured to trigger when an Opportunity record is updated to meet specific criteria (Stage = 'Closed Won'). Once triggered, it can execute a sequence of actions. This includes creating a new record (the welcome task) and invoking an email alert to send the welcome email to a related record, such as the Opportunity's primary contact. This tool handles multiple actions and cross-object logic effectively.

A. Validation Rule: This tool enforces data integrity by preventing users from saving records with invalid data. It cannot create records or send emails.

B. Outbound Message: This is a specific action used to send information to an external system via an API call, not for automating internal Salesforce actions like task creation.

C. Approval Process: This tool is used to automate a formal record approval sequence. It is not designed to trigger actions based on a standard field update like a stage change.

1. Salesforce Help

"Process Builder": "Process Builder helps you automate your business processes... A process consists of criteria that determine when to execute an action group and immediate or scheduled actions to execute when those criteria are met." This document confirms Process Builder's trigger-and-action model.

2. Salesforce Help

"Process Action Types": This page explicitly lists "Create a Record" and "Email Alerts" as available actions within Process Builder. This directly supports the requirement to create a task and send an email.

3. Salesforce Help

"Validation Rules": "Validation rules verify that the data a user enters in a record meets the standards you specify before the user can save the record." This confirms its purpose is data validation

not process automation.

4. Salesforce Help

"What Is an Approval Process?": "An approval process automates how records are approved in Salesforce. An approval process specifies each step of approval

including from whom to request approval and what to do at each point of the process." This defines its specific use case

which is different from the question's scenario.