The destination city is a neighbor of the origin city. The destination city is in the same province as the origin city. The origin city and the destination city are both in provinces with ports in the same country.

Hello everyone, and welcome to another development diary for Imperator.In the Cicero update, we are changing the instant population manipulation mechanics to become a simulation over time that you can nudge.Slaves from neighboring cities, or cities within the same province, can still be moved manually into a city for a cost, somewhat similar to before. This will also be possible for Tribesmen if you are a migratory tribe.Each city can also have one pop migrating at a time. If the Migration Attraction in a city is X more than that of another city then migration can happen to it if:Which pop is picked for migration will be random but a slave will never be picked unless the city is over its population capacity and the slave is not required for a holding. A pop that is currently migrating cannot be picked for Promotion, Assimilation or Conversion. It will also only be picked for starvation if it is the last existing pop in the city.The speed of Migration can be increased or decreased by modifiers such as a city being looted, or a certain governor policy being used.If the population of a certain pop type is below 33% in a given city then a random pop is picked for promotion. This pop will then over time start promoting to the underrepresented pop type. The speed of promotion will be dependent on modifiers as well as using the Social Mobility governor policy.Similarly to Pop Promotion Assimilation and Conversion will happen to one selected pop at a time. Unlike the other two there will always be one pop chosen as long as there are pops of the non-state Religion or culture. The speed at which conversion takes place is dependent on a number of local and national modifiers however which means that de facto the pop may not be assimilating/converting.As you can see below, the pop interface is in the process of being completely reworked for Cicero.As the impact of governor policies now scales with Finesse, you need a really good governor, and perhaps a few special buildings to be able to convert and assimilate cities with another dominant religion and culture.You can still manually move slaves as you like between cities, for a price in gold, but the UI have been completely changed, so instead of selecting a pop then a target, you instead go to the city you want slaves in, and then select what type of pop you want, and its origin and click for as many as you want in the same UI.