Hi,
To achieve this is very simple & you'll need to use classification with object dependencies.
You need to create 3 different characteristics.
1) Region (Z_Region) - with it's values (all the regions)
2) Country (Z_Country)- with it's values (all the countries)
3) Cities (Z_Cities)- with it's values (all teh cities)
Then you need to create object dependencies on all the values for the Country characteristic & the City characteristic
Country characteristic - the dependency will be a pre-condition against each value in your list
The formula will look like:
Value South Africa - Z_Region = 'Africa'
In other words the value 'South Africa' will appear only when the Region = Africa
City characteristic - the dependency will be a pre-condition against each value in your list
The formula will look like:
Value Johannesburg - Z_Country = 'South Africa'
In other words the value 'Johannesburg' will appear only when the Country = South Africa
By doing this you achieve exactly what you want.
Regards,
Neil
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