The starting point for notifying customers of the end of a program is the program rules. These typically state that “the operation of the program is at the sole discretion of the program operator,” or something similar, which means that technically the program operator can shut down the program however they see fit. However, this is far from a “best practice,” especially in light of the fact that the program participants are likely to be among the brand’s most dedicated customers. A more considerate and common route is to notify participants several months in advance that the program will be ending. This is usually done via U.S. mail, backed up by email where possible. A notification would also be shown on the program website. Once the “earn” period has ended, participants are also given at least a few more months in which to redeem for their rewards. Although there is likely to be a groundswell of redemptions initially, many members will continue to participate in order to build up to a specific reward that they are close to attaining, and to achieve the maximum benefit before the end of the program. The actual number of redemptions can vary tremendously, depending on factors such as average rate of participation, typical redemption activity, average outstanding number of certificates, and several other factors. While there are no protocols in terms of specific steps to take for the increased redemption, program operators often add or include gift cards or gift certificates to the reward mix in order to have options for which there are no inventory restrictions. A starting point for the engagement of an industry expert in this case would be the program Terms & Conditions, as well as several different kinds of documents (for example, samples of member communications, screen shots of relevant pages, etc.). The information I have provided here is very general in nature. I would anticipate spending several hours in building an in-depth knowledge and understanding of the program, its key metrics, program rules and operations, customer behavior, and in particular, how the shutdown was managed.