The Placement parameter may be a province, a detachment or left undefined (as for Ambassadors, which are automatically deployed to the Capital). Sometimes the new unit does not appear on the map but in the Reinforcement/Replacement box instead. An example of this is the Russian BB_Gangut unit that is supposed to appear in RUS_F01, the Baltic Fleet detachment but never seems to show up there.
The placement parameter is shown in [color="#FF0000"]RED[/color].
Editing this file should change the placement as desired but only at the start of a new scenario. Once the scenario begins, the reinforcement schedule is written into the *.SAV file and the Reinforcement.csv file is not read again.
Calvinus may stop by and correct this.