Microsoft Corp.’s Azure and Amazon Web Services are set to be designated under the European Union’s strict rulebook for Big Tech.Regulators are putting the final touches to a Digital Markets Act investigation into the two firms that will conclude that Azure and AWS meet the requirements to fall under the scope of its rules, according to people familiar with the matter. The decision is set to be issued in November but still in draft form and timing could slip, they said asking not to be identifie...