Salesforce Flows can be invoked from several external or internal mechanisms:

B. LWC (Lightning Web Component) — Flows can be embedded into LWCs or invoked via the lightning-flow base component.

C. REST API — You can call autolaunched flows using the REST API via Flow Interview endpoints.

E. Apex — Flows can be called using the Flow.Interview class in Apex.

Incorrect Options:

A. Apex WSDL — Refers to legacy SOAP-based integrations with Apex classes, not Flows.

D. SOAP API — While Salesforce does offer SOAP API for many objects, flows are best invoked through REST or Apex for automation scenarios.

Reference Extracts from Salesforce Process Automation Study Guide:

“You can invoke flows from Apex, REST API, Process Builder, and Lightning components.”

“The lightning-flow component in LWC allows screen flows to be embedded and executed declaratively.”

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