The Max # Duplicate Offers rule allows you to limit the number of times a customer receives the same offer in a given time period from a particular channel. You can create a single Max # Duplicate Offers rule for all offers in an offer set. For example, if you create a Max # Duplicate Offers rule for a set of offers, setting a max of 0, then each customer can get only one of any offer (zero duplicates, but an individual can get many different offers.)

Use this rule to limit the number of duplicate offers that may be given to the same individual, potentially over different channels. You can prevent duplicates of any offer by creating a smart offer list in Campaign representing all offers. For example, you can use this rule to ensure that if you send a customer an offer through email, you do not send the customer the same offer in regular mail within a one month period.