The ability to send operational (non-marketing) emails to opted-out prospects in Marketing Cloud Account Engagement is a special feature that is not enabled by default. It cannot be activated by a consultant or an account administrator directly within the settings. The correct procedure requires the client to submit a formal request to the appropriate Salesforce team (historically the Client Advocate Team, now generally handled through Salesforce Support). This process ensures that Salesforce can verify the intended use is for legitimate, non-promotional communications, thereby maintaining compliance and deliverability standards.

A. This is incorrect because major anti-spam laws, like CAN-SPAM, distinguish between commercial and transactional/relationship messages. Sending purely operational emails is generally permissible.

B. This is incorrect because neither a consultant nor a client administrator has the direct ability to enable this feature. It must be provisioned by Salesforce support after a review.

D. This is incorrect because the fundamental premise is flawed. The consultant cannot enable the setting, so requesting written confirmation for an action they cannot perform is not the appropriate course of action.

1. Salesforce Help Documentation, "Considerations for Sending Operational Emails": This document outlines the nature of operational emails and the process for enablement. It states, "To send operational emails, a Pardot admin must contact Salesforce Support to have the feature enabled." This directly supports the conclusion that the client must contact a Salesforce team, not the consultant, to enable the feature.

2. Salesforce Help Documentation, "Send Operational Emails": This guide details the steps for using the feature after it has been enabled. The prerequisite section notes, "To get started with operational emails, contact your Salesforce account executive." This confirms that enablement is a controlled process managed by Salesforce personnel, invalidating options B and D.

3. U.S. Federal Trade Commission, "CAN-SPAM Act: A Compliance Guide for Business": The guide defines a "transactional or relationship message" which facilitates an agreed-upon transaction or updates a customer in an existing business relationship. It clarifies that such messages are not considered "commercial electronic mail messages" and are exempt from most provisions of the Act, including honoring opt-out requests for marketing. This refutes the claim in option A.