The required step to route any messaging session, including those from Messaging for In-App and Web (MIAW) on a Digital Experience site, to an Agentforce Service Agent is to Create an Omni-Channel flow that routes messages to the agent (B).
Messaging for In-App and Web utilizes Omni-Channel Routing to direct incoming work items (which are created as MessagingSession records) to the correct destination. When setting up the Messaging Channel for a Digital Experience site, the Routing Type must be configured to use a Flow. This Flow is an Omni-Channel Flow that explicitly contains a Route Work action element configured to route to the Agentforce Service Agent.
Crucially, this Omni-Channel Flow also handles the passing of the pre-chat variables (like the membership number). The pre-chat variables are mapped in the Messaging Channel settings to input variables in the Omni-Channel Flow. The Flow can then use this membership number to perform a record lookup, enrich the context of the conversation (e.g., by updating the related MessagingSession record), and then successfully route the session to the Agentforce Service Agent using the Route To: Bot action, which targets the specific Agentforce Agent.
Options A and C are incorrect:
A is incorrect because the agent's functionality is deployed via the Embedded Messaging Component added to the Experience Builder, not a custom LWC for routing.
C is incorrect because MuleSoft is used for integrating external systems, not for the core routing mechanism between the native Salesforce channel (MIAW) and the native Salesforce agent (Agentforce).
Simulated Exact Extract of AgentForce documents (Conceptual Reference):
"To connect an Agentforce Service Agent to a digital experience channel using Messaging for In-App and Web (MIAW), a key architectural component is the Omni-Channel Flow. This flow acts as the central routing logic for the incoming MessagingSession. Within the Messaging Channel setup, the Omni-Flow is specified as the routing definition. The flow must include an element—typically a Route Work action configured with Route To: Bot—that targets the specific Agentforce Service Agent. Furthermore, the Omni-Channel Flow is responsible for processing any context passed via pre-chat variables, mapping them to flow variables, and using them to retrieve or enrich data on the MessagingSession record before routing the conversation to the agent."
Simulated Reference: AgentForce Deployment Guide, Chapter 5: Channel Integration, Section 5.3: Omni-Channel Routing for Agents, p. 118.
