diff --git a/pkg/cmd/provisioning/azure/create_all.go b/pkg/cmd/provisioning/azure/create_all.go
index 30c8aa0c4..67c9ef1b1 100644
--- a/pkg/cmd/provisioning/azure/create_all.go
+++ b/pkg/cmd/provisioning/azure/create_all.go
@@ -43,6 +43,15 @@ func createAllCmd(cmd *cobra.Command, args []string) {
 		log.Printf("No --oidc-resource-group-name provided, defaulting OIDC resource group name to %s", CreateAllOpts.OIDCResourceGroupName)
 	}
 
+	if CreateAllOpts.InstallationResourceGroupName == "" {
+		CreateAllOpts.InstallationResourceGroupName = CreateAllOpts.Name
+		log.Printf("No --installation-resource-group-name provided, defaulting installation resource group name to %s", CreateAllOpts.InstallationResourceGroupName)
+	}
+
+	if CreateAllOpts.OIDCResourceGroupName == CreateAllOpts.InstallationResourceGroupName {
+		log.Fatalf("OIDC and installation resource group names cannot be the same")
+	}
+
 	if CreateAllOpts.StorageAccountName == "" {
 		CreateAllOpts.StorageAccountName = CreateAllOpts.Name
 		log.Printf("No --storage-account-name provided, defaulting storage account name to %s", CreateAllOpts.StorageAccountName)
@@ -56,11 +65,6 @@ func createAllCmd(cmd *cobra.Command, args []string) {
 		log.Printf("No --blob-container-name provided, defaulting blob container name to %s", CreateAllOpts.BlobContainerName)
 	}
 
-	if CreateAllOpts.InstallationResourceGroupName == "" {
-		CreateAllOpts.InstallationResourceGroupName = CreateAllOpts.Name
-		log.Printf("No --installation-resource-group-name provided, defaulting installation resource group name to %s", CreateAllOpts.InstallationResourceGroupName)
-	}
-
 	issuerURL, err := createOIDCIssuer(azureClientWrapper,
 		CreateAllOpts.Name,
 		CreateAllOpts.Region,
@@ -177,7 +181,7 @@ func NewCreateAllCmd() *cobra.Command {
 			"The OpenShift installer requires that the resource group provided for installation resources be initially empty so this resource group must "+
 			"contain no resources if the resource group was previously created. "+
 			"A resource group will be created (with name derived from the --name parameter) if an installation-resource-group-name parameter was not provided. "+
-			"Note that this resource group must be provided as the installation resource group when installing the OpenShift cluster",
+			"Note that this resource group must be provided as the installation resource group when installing the OpenShift cluster.",
 	)
 	createAllCmd.PersistentFlags().StringVar(
 		&CreateAllOpts.StorageAccountName,
diff --git a/pkg/cmd/provisioning/azure/create_managed_identities.go b/pkg/cmd/provisioning/azure/create_managed_identities.go
index 7d246b3b2..8090be418 100644
--- a/pkg/cmd/provisioning/azure/create_managed_identities.go
+++ b/pkg/cmd/provisioning/azure/create_managed_identities.go
@@ -654,6 +654,10 @@ func createManagedIdentitiesCmd(cmd *cobra.Command, args []string) {
 		log.Printf("No --installation-resource-group-name provided, defaulting installation resource group name to %s", CreateManagedIdentitiesOpts.InstallationResourceGroupName)
 	}
 
+	if CreateManagedIdentitiesOpts.OIDCResourceGroupName == CreateManagedIdentitiesOpts.InstallationResourceGroupName {
+		log.Fatalf("OIDC and installation resource group names cannot be the same")
+	}
+
 	err = createManagedIdentities(
 		azureClientWrapper,
 		CreateManagedIdentitiesOpts.CredRequestDir,