fix for Issue : 4938

Author: Ajit Navasare (MINDTREE LIMITED)

src/ServiceBus/ServiceBus/ChangeLog.md

@@ -19,6 +19,7 @@
         - Additional information about change #1
 -->
 ## Upcoming Release
+* Fix for issue #4938 - New-AzureRmServiceBusQueue returns BadRequest when setting MaxSizeInMegabytes
 
 ## Version 1.2.0
 * Fix for issue #9182 - Get-AzServiceBusNamespace returns ResourceGroup instead of ResourceGroupName

src/ServiceBus/ServiceBus/Cmdlets/Queue/NewAzureServiceBusQueue.cs

@@ -80,7 +80,7 @@ public class NewAzureRmServiceBusQueue : AzureServiceBusCmdletBase
         [ValidateNotNullOrEmpty]
         public int? MaxDeliveryCount { get; set; }
 
-        [Parameter(Mandatory = false, ValueFromPipelineByPropertyName = true, HelpMessage = "MaxSizeInMegabytes - the maximum size of the queue in megabytes, which is the size of memory allocated for the queue.")]
+        [Parameter(Mandatory = false, ValueFromPipelineByPropertyName = true, HelpMessage = "MaxSizeInMegabytes - the maximum size of the queue in megabytes, which is the size of memory allocated for the queue.Default is 1024. Max for Standard SKU is 5120 and for Premium SKU is 81920, Allowed values : 1024, 2048, 3072, 4096, 5120, 10240, 20480, 40960, 81920")]
         [ValidateNotNullOrEmpty]
         public long? MaxSizeInMegabytes { get; set; }
 

src/ServiceBus/ServiceBus/help/New-AzServiceBusQueue.md

@@ -250,7 +250,7 @@ Accept wildcard characters: False
 ```
 
 ### -MaxSizeInMegabytes
-MaxSizeInMegabytes - the maximum size of the queue in megabytes, which is the size of memory allocated for the queue.
+MaxSizeInMegabytes - the maximum size of the queue in megabytes, which is the size of memory allocated for the queue.Default is 1024. Max for Standard SKU is 5120 and for Premium SKU is 81920, Allowed values : 1024, 2048, 3072, 4096, 5120, 10240, 20480, 40960, 81920
 
 ```yaml
 Type: System.Nullable`1[System.Int64]