Merge pull request #293966 from tarTech23/role1

Add message for first time login with new subscription

Author: prmerger-automator[bot]

articles/defender-for-iot/organizations/roles-azure.md

@@ -45,6 +45,11 @@ Permissions are applied to user roles across an entire Azure subscription, or in
 
 For an overview on creating new Azure custom roles, see [Azure custom roles](/azure/role-based-access-control/custom-roles). To set up a role, you need to add permissions from the actions listed in the [Internet of Things security permissions table](/azure/role-based-access-control/permissions/internet-of-things#microsoftiotsecurity).
 
+>[!Important]
+>
+> After adding a new subscription to Defender for IoT, the initial login for that subscription must be performed using either the Owner or Contributor roles. For all subsequent logins the Security Admin role is sufficient.
+>
+
 ## Next steps
 
 For more information, see: