Fix "House number already exists" error.
When adding HNs, if a particular number and street name combination exist anywhere else in the state, you get an error message that the HN can't be added because it already exists on the street.' It's not unusual for a street name to be used many times in other cities in the state.
What's even more frustrating is when the HN has been on the street for YEARS but in the wrong position but all you do is try to move it to the correct position and you get the "House number already exists" error.
There are work-arounds to force the HN to be accepted but it would be much simpler if the city name could be considered in determining if that the HN already exists. A street name is normally used only one time in a city so when there are three things considered - house number, street name AND city name - the "HN already exists" error should be eliminated.
Can a few lines of code force WME to check whether the HN already exists ON THAT STREET, IN THAT TOWN?