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You can define a strategy for each widget of each of your TPO (Touch Point WPO (Widget & Page Optimizer) and this stragy will be responsible to define dynamically what products should appear in which position.
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To create a rule, you must first know and select on what Widget you want this rule to apply (a rule is connected to one widget always), so if you do not know what widget you want to work on, go the the main TPO WPO view to retrieve your widgets strategy and identify the right one.
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