An approval process must wait days for a human response without holding an ordinary execution thread open. Which approach fits?

Choose the single best answer.

A.An in-process cache used as the sole approval record
B.A legacy Consumption invocation sleeping until approval
C.A durable workflow waiting for an external approval event with persisted progress
D.A single synchronous HTTP request held for several days

Show the answer and explanation

✓ Correct answer

A durable workflow waiting for an external approval event with persisted progress

Durable orchestration can persist state and wait for external events without one continuous ordinary execution. Synchronous requests and sleeping legacy invocations exceed their lifetime constraints, while an in-process cache is not a durable approval record. Source guide: PDF page(s) 47.

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