Cascade Regional Airlines assigns a Microsoft 365 E3 license to its Ground Operations security group using group-based licensing, but the identity admin notices the group has run out of available licenses in the pool, so several new members show a licensing error instead of receiving the license. What is the most appropriate way to resolve this?

Group-based licensing assigns a specified license SKU to every member of a group, but it draws from the tenant's actual purchased license pool; if there aren't enough available units for all current members, Entra ID reports a licensing error for the members it couldn't cover rather than fabricating additional inventory. The direct fix is to increase available supply — either by purchasing additional Microsoft 365 E3 licenses or by reclaiming licenses from accounts that no longer need them (such as disabled or departed users) — so the pool covers the full group membership. The claim that group-based licensing auto-purchases more licenses is false; it strictly enforces against existing inventory and will leave members unlicensed rather than silently generating cost. Switching affected users to personal Microsoft accounts abandons managed, tenant-governed identity entirely and doesn't solve a license shortage — it would also break their access to corporate resources tied to their Entra ID account. Deleting the group doesn't resolve the shortage either; it just removes the automated assignment mechanism and leaves every member unlicensed and requiring manual cleanup. An exam-relevant caveat: the Entra admin center surfaces licensing errors per user in the group's "Licenses" blade, which is where an admin should look first. An operational check is confirming the tenant's license count under Billed licenses covers the group's current member count before re-running the assignment.