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In the AB test, if one of them has no action at all, Subsequent all judgment will be wrong.
Ex.)Dlivery A: One person does not openDlivery B: One person opens
After that , all winner is "Dlivery A".Also, you cannot control the same rate."Dlivery A" is always the winner...
It is a number of targets is small, It may not be realistic.But in the unlikely event that it happens, The delivery record of campaign dushboard must be deleted.
Is there any countermeasure?