Adaptive scopes are a new way to dynamically target sets of locations (sites, users, and groups) for Microsoft 365 retention policies. In this article, we discuss the basics of adaptive scopes and how to build the filters used in the scopes, and then how to use adaptive scopes in retention policies. Adaptive scopes are well suited to the kind of processing needed by large enterprises, which is good because they required Office 365 E5 licenses.