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How it works: The system sends Version A to 10% of the list, Version B to 10% of the list. It waits 4 hours. It sends the winning version to the remaining 80%.
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Variables to test:
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Subject Lines (Most common).
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Send Time (Morning vs. Evening).
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Button Color (Red vs. Blue).
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Sender Name (“elearningshub” vs. “Kerry from elearningshub”)
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