An enterprise hub receives a first local log from a first transaction delivery system of a first media outlet, and a second local log from a second transaction delivery system of a second media outlet The local logs represents media items scheduled for delivery by the media outlets. The enterprise hub also receives a first avail claim, to be inserted into both the first local log and the second local log, from a first content provider. The enterprise hub inserts the first avail claim into the first local log to generate a first revised log, and into the second local log to generate a second revised log. The first and second revised logs are transmitted from the enterprise hub to the corresponding first or second media outlet.