Why are addresses not populating on Raiser's Edge NXT constituents?
Likely, the "Countries matching" rules are not set. Please check that setting in the NXT integration.
Raiser's Edge NXT requires Country information to be matched to an exact list, which must first be done in the setup of the Raiser's Edge NXT integration.
You can set up the "Countries matching" configuration in the integration's general settings tab.
There is a long list of matching countries to configure. Feel free to configure the country where you will get the most supporters first and complete the rest of the countries at your convenience.
For more information, please refer to the larger Customizing the Raiser's Edge NXT integration article!