Why can't we have send and receive within an atomic scope? The atomic scope was designed to handle Atomicity, Consistency, Isolation, and Durability (ACID) compliant operations that must either all succeed or all fail as a group. This is a classic database transaction style. It is designed to carry an orchestration from one stable state to another. This is why you cannot both send and receive from an atomic scope, because by design the message box is not a lockable resource . To accomplish this atomicity, the orchestration engine persists the entire orchestration state to the message box before the atomic scope begins; it subsequently persists the orchestration again when the atomic scope completes.
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