Cisco Meraki licensing works on the basis of Co-termination. This means that for any given Organization, regardless of how many licenses were applied or when they were applied, the license expiration date for all licenses claimed to that Organization will be exactly the same. This is accomplished by averaging all active licenses together and dividing by the License Limit count of devices in the Organization. For example, suppose an Organization had 2 separate Enterprise AP licenses, one license for 2x APs spanning 1-year (365 days) and another for 1x AP spanning 5-years (1825 days). The Co-termination value would be calculated as ((1825*1)+(365*2))/3= 851 days total for all 3 APs. So assuming all 3 licenses were applied on the same day, the Organization would have a Co-term date of 851 days from the start date of the licenses. If the licenses were not applied at the same time, for example if the 5 year license was applied half-way through the 1 year license, the Co-term calculation will take that into affect. In this case the calculation would be ((1825*1)+(182*2))/3=730 days total for all 3 APs.
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