Some transfers are done in real time, which requires a live link between the card and program's systems. If they do not have such a link the transfers are done in batches, and we have no information about how often it's done, in what form the transfer is made, or how much manual work is required. It could be that a specific individual at Chase sends a file to a specific individual at Marriott and if either is out of the office it simply isn't done.