azurerm_app_service_managed_certificate - create certificate in ser…

…vice plan resource group (#9701)

azurerm/internal/services/web/app_service_managed_certificate_resource.go

@@ -111,11 +111,16 @@ func resourceArmAppServiceManagedCertificateCreateUpdate(d *schema.ResourceData,
 	}
 
 	name := customHostnameBindingId.Name
-	appServicePlanID := ""
+	appServicePlanIDRaw := ""
 	if appService.SiteProperties == nil || appService.SiteProperties.ServerFarmID == nil {
 		return fmt.Errorf("could not get App Service Plan ID for Custom Hostname Binding %q (resource group %q)", customHostnameBindingId.Name, customHostnameBindingId.ResourceGroup)
 	}
-	appServicePlanID = *appService.SiteProperties.ServerFarmID
+	appServicePlanIDRaw = *appService.SiteProperties.ServerFarmID
+
+	appServicePlanID, err := parse.AppServicePlanID(appServicePlanIDRaw)
+	if err != nil {
+		return err
+	}
 
 	appServiceLocation := ""
 	if appService.Location != nil {
@@ -124,7 +129,7 @@ func resourceArmAppServiceManagedCertificateCreateUpdate(d *schema.ResourceData,
 
 	t := d.Get("tags").(map[string]interface{})
 
-	id := parse.NewManagedCertificateID(subscriptionId, customHostnameBindingId.ResourceGroup, name)
+	id := parse.NewManagedCertificateID(subscriptionId, appServicePlanID.ResourceGroup, name)
 
 	if d.IsNewResource() {
 		existing, err := client.Get(ctx, id.ResourceGroup, id.CertificateName)
@@ -142,7 +147,7 @@ func resourceArmAppServiceManagedCertificateCreateUpdate(d *schema.ResourceData,
 	certificate := web.Certificate{
 		CertificateProperties: &web.CertificateProperties{
 			CanonicalName: utils.String(customHostnameBindingId.Name),
-			ServerFarmID:  utils.String(appServicePlanID),
+			ServerFarmID:  utils.String(appServicePlanIDRaw),
 			Password:      new(string),
 		},
 		Location: utils.String(appServiceLocation),