At Cloud Kicks, sales reps use discounts on the opportunity record to help win sales on particular products. When an opportunity is won, they then…

Flow Builder is the appropriate automation tool for this requirement. A record-triggered flow can be configured to execute when an Opportunity record is updated and the 'Stage' field is set to 'Won'. This flow can then automatically get all related Opportunity Product records and update their respective discount fields with the value from the parent Opportunity's discount field. This solution is fully automated and eliminates the need for manual user intervention, directly addressing the sales manager's request.

A. Approval Process: An approval process is designed to submit a record for approval from one or more users. It is not the primary tool for automating data updates on related records.

B. Formula Field: A formula field is read-only and calculates a value dynamically. It cannot be used to update a field value on a related child record.

D. Prebuilt Macro: A macro automates a sequence of user interface actions but must be manually initiated by a user. It does not run automatically in the background based on a record change.

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1. Salesforce Help, "Flow Builder": This document outlines the capabilities of Flow Builder as the primary tool for declarative process automation. It supports complex logic, including fetching and updating related records, which is central to the scenario. (Refer to the "What Can I Build with Flow Builder?" section).

2. Salesforce Help, "Record-Triggered Flow Considerations": This documentation specifies that a record-triggered flow "starts when a record is created or updated" and can be used to "update any record, but it’s easiest to update the triggering record or records that are related to it." This directly validates using a flow to update child Opportunity Products when a parent Opportunity is updated.

3. Salesforce Help, "What Is an Approval Process?": This source defines an approval process as a tool that "automates how records are approved in Salesforce." Its purpose is managing approval sequences, not automating field propagation to related records.

4. Salesforce Help, "Formulas": The documentation on formula fields implicitly confirms their read-only nature. They are designed to compute and display values, not to perform Data Manipulation Language (DML) operations like updating other records. (Refer to the "What is a Formula?" section).

5. Salesforce Help, "Set Up and Use Macros": This document states, "A macro is a set of instructions that tells the system how to complete a task... Users run a macro to complete these steps automatically." This confirms that macros are not fully automated backend processes and require user interaction to run.