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Due to the fact that multiple application terminals (like the VeriFone Omni/Vx series and Hypercom Optimum series) allow many independent applications to function, it is possible that there may not be enough memory available on a terminal to allow the download or proper functioning of the terminal following the download of SPS applications. The applications are certified for use on the terminals specified and with the Credit Card processors specified, but are limited by the amount of free memory available in the terminal.
SPS Applications require a minimum of 312K of free memory in order to process, both to hold the application and to maintain the free memory required by the terminal for proper processing.
Note: While the Check, Gift, and Loyalty functions are available in a single application, use of the PayDay Express application along with any other services will require a minimum of 512K (1/2 of one megabyte) of free memory.