Offers from multiple entities provide an incentive for consumers to behave in a manner that is beneficial to the offer provider. Each offer is associated with rules that establish conditions that must be met for the offer to be valid. For example, a rule may be established to promote the use a specific form of payment, such as a particular credit card. Thus, the offer would only be valid if the consumer paid for the merchandise using the particular credit card. A merchant may generate its own offers or receive offers from a variety of sources (e.g., a payment processing organization, an issuer, or other external sources).