Go to CommCare Supply setup and select Locations HQ, select Users and then Location Types. You could add or remove locations from default location hierarchy to make it representing your model. Note this is the only place where you setup the attributes of your locations. All locations (to be registered in another tab) will be instances.
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(For now let's leave SMS Keywords, Stock Actions to defaults. You will not need to worry about these two sections if your project is using CommCare Supply mobile application instead of 2-way SMS).
OK. Now you have configured your location hierarchy. Let's get down to create locations!
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