Resolve errors for storage account names

Symptom

If your storage account name includes prohibited characters, you receive an error like:

Code=AccountNameInvalid

Message=S!torageckrexph7isnoc is not a valid storage account name. Storage account name must be

between 3 and 24 characters in length and use numbers and lower-case letters only.

For storage accounts, you must provide a name for the resource that is unique across Azure. If you do not provide a unique name, you receive an error like:

Code=StorageAccountAlreadyTaken

Message=The storage account named mystorage is already taken.

If you deploy a storage account with the same name as an existing storage account in your subscription, but provide a different location, you receive an error indicating the storage account already exists in a different location. Either delete the existing storage account, or provide the same location as the existing storage account.

Cause

Storage account names must be between 3 and 24 characters in length and use numbers and lower-case letters only. The name must be unique Microsoft Azure.

Solution

Make sure the storage account name is unique. You can create a unique name by concatenating your naming convention with the result of the uniqueString function.

"name": "[concat('storage', uniqueString(resourceGroup().id))]",

"type": "Microsoft.Storage/storageAccounts",

Make sure your storage account name does not exceed 24 characters. The uniqueString function returns 13 characters. If you concatenate a prefix or postfix to the uniqueString result, provide a value that is 11 characters or less.

"parameters": {

  "storageNamePrefix": {

    "type": "string",

    "maxLength": 11,

    "defaultValue": "storage",

    "metadata": {

    "description": "The value to use for starting the storage account name."

    }

  }

}

Make sure your storage account name does not include any upper-case letters or special character

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