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Article ID: 130984, created on Jun 12, 2017, last review on Jun 12, 2017

  • Applies to:
  • Operations Automation 6.0


Get-MsolUser powershell comandlet fails with the following error:

The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter
The InnerException message was 
'Maximum number of items that can be serialized or deserialized in an object graph is '65536'.  

Change the object graph or increase the MaxItemsInObjectGraph quota. '.  Please see InnerException for more details


The total items in Object Graph to be serialize / deserialize are more than the default allowed limit - 65536.


Increase the limit.

  1. Check your powershell version: $psversiontable.psversion.tostring()

  2. Modify the machine.config file in C:\Windows\Microsoft.NET\Framework[64]\[Powershell version]\CONFIG directory:

Add <dataContractSerializer maxItemsInObjectGraph="2147483646" /> line to the <endpointBehaviors> section like:

<dataContractSerializer maxItemsInObjectGraph="2147483646" />    

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