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What is "When To Evaluate"

Unregistered User Posts: 514 10/23/2017	Unregistered User Posts: 514 When I try to Extract some on the fly generated IDs using StresStimulus I came across this properties. Can you explain how to use it? When To Evaluate : On Request or On Iteration
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George @StresStimulus Administrator Posts: 568 10/23/2017	George @StresStimulus Administrator Posts: 568 When To Evaluate property of the data generators is described here http://support.stresstimulus.com/display/doc47/Data-Generators Here is the explanation: Set the When To Evaluate property to On Iteration to generate a new value on every iteration (default). In this case, the random values persist throughout the iteration for every VU. This allows a VU to use the same random value more than once in different requests of the same iteration. Example: A web form requires entering an email address created by a data generator, twice for verification purposes. In this case, set When To Evaluate property to On Iteration to avoid failing due to entry mismatch. Alternatively, set When To Evaluate to On Request to generate a new value on every on every request.
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