editorial changes

Author: AmandaAZ

support/azure/azure-kubernetes/error-codes/AvailabilityZoneNotSupported

@@ -1,46 +1,51 @@
 ---
-title: Troubleshoot AvailabilityZoneNotSupported error code
+title: Troubleshoot AvailabilityZoneNotSupported Error Code
 description: Learn how to troubleshoot the AvailabilityZoneNotSupported error when you try to create an Azure Kubernetes Service cluster in a set of zones.
-ms.date: 05/20/2025
-editor: sushma kuchipudi
-ms.reviewer:
+ms.date: 05/26/2025
+ms.reviewer: marcha, skuchipudi, v-weizhu
 ms.service: azure-kubernetes-service
 ms.custom: sap:Create, Upgrade, Scale and Delete operations (cluster or nodepool)
 #Customer intent: As an Azure Kubernetes Services (AKS) user, I want to troubleshoot an Azure Kubernetes Service cluster create that failed because of a AvailabilityZoneNotSupported error code so that I can create the cluster successfully.
 ---
-
-# Troubleshoot the "AvailabilityZoneNotSupported" error code
+# Troubleshoot the AvailabilityZoneNotSupported error code
 
 This article discusses how to identify and resolve the "AvailabilityZoneNotSupported" error that occurs when you try to create an Azure Kubernetes Service (AKS) cluster.
 
-Here's an example of the error message:
-
-> Preflight validation check for resource(s) for container service xxxx in resource group zzzz failed. Message: The zone(s) '1' for resource 'agentpoolName' is not supported.The supported zones for location 'xyz' are 'A', 'B'
-
 ## Prerequisites
-Access to [Azure CLI](https://learn.microsoft.com/en-us/cli/azure/get-started-with-azure-cli?view=azure-cli-latest)
+
+Access to [Azure CLI](/cli/azure/get-started-with-azure-cli).
 
 ## Symptoms
 
-An AKS cluster create fails in requested availability zones, and you receive a "AvailabilityZoneNotSupported" error message.
+An AKS cluster creation fails in the requested availability zone and you receive an "AvailabilityZoneNotSupported" error.
+
+Here's an example of the error message:
+
+> Preflight validation check for resource(s) for container service \<resource-name> in resource group \<resource-group-name> failed. Message: The zone(s) '1' for resource 'agentpoolName' is not supported.The supported zones for location '\<location>' are 'A', 'B'
 
 ## Cause
 
-The issue occurs if the requested SKU is not available in the requested zones or there is restriction on the subscription.
+The issue occurs if the requested SKU isn't available in the requested zone or there's restriction on the Azure subscription.
 
 ## Solution
 
-you can use the following command to verify if sku is not available in requested zones
+To resolve this issue, verify if the requested SKU isn't available in the requested zone by running the following commands:
+
+```azurecli
 az vm list-skus -l <location> --size <SKU> 
+```
 
-or 
+```azurecli
+az rest --method get \
+    --url "https://management.azure.com/subscriptions/<subscription>/providers/Microsoft.Compute/skus?%24filter=location+eq+%27<location>%27&api-version=2022-03-01"  >> availableSkus.txt
+```
 
-`az rest --method get  \
-  --url "https://management.azure.com/subscriptions/<subscription>/providers/Microsoft.Compute/skus?%24filter=location+eq+%27<location>%27&api-version=2022-03-01"  >> availableSkus.txt`
+> [!NOTE]
+> Replace `<subscription>` and `<locaiton>` in the URL accordingly.
 
-You would need to replace `<subscription>` and `<locaiton>` in the URL. You can then search for the requested sku info in the output. If you see something like this, your subscription doesnt have access to zones in the requested region
+Then, search for the requested SKU information in the command output. If you see the following information, it indicates that your subscription doesn't have access to zones in the requested region.
 
-```
+```output
 "restrictions": [
                 {
                     "type": "Zone",
@@ -49,7 +54,7 @@ You would need to replace `<subscription>` and `<locaiton>` in the URL. You can
                     ],
                     "restrictionInfo": {
                         "locations": [
-                            "xxxxx"
+                            "<location>"
                         ],
                         "zones": [
                             "1",
@@ -62,6 +67,6 @@ You would need to replace `<subscription>` and `<locaiton>` in the URL. You can
             ]
 ```
 
-To request access to a region or zone, go to the [Azure portal](https://ms.portal.azure.com/#blade/Microsoft_Azure_Support/HelpAndSupportBlade/newsupportrequest). Please follow instructions mentioned [here](https://learn.microsoft.com/en-us/troubleshoot/azure/general/region-access-request-process)
+In this case, request access to the region or zone from the [Azure portal](https://ms.portal.azure.com/#blade/Microsoft_Azure_Support/HelpAndSupportBlade/newsupportrequest) by following instructions in [Azure region access request process](../general/region-access-request-process.md).
 
-[!INCLUDE [Azure Help Support](../../../includes/azure-help-support.md)]
+[!INCLUDE [Azure Help Support](../../../includes/azure-help-support.md)]