Access & Privilege needed, to re-name an Existing user in Dynamic 365 MS CRM

Hi Team,

Thanks in Advance!

Am stuck in something very simple I think.

I have set of user/supporters in my Organization, who have access to create users in MS DYANMICS 365 CRM. They are not system admin, but have roles more than a normal user. They can "create" users in CRM and view most of the setting which ideally a normal user can not see, only he/she cannot edit/create them.

Everything going normal, but "error" comes - when there is request to "re-name" an existing user.

This support team when tries to rename the existing user, they get an error message.

 Below is the Log file:

Unhandled Exception: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: Access is denied.Detail:
<OrganizationServiceFault xmlns:i="www.w3.org/.../XMLSchema-instance" xmlns="schemas.microsoft.com/.../Contracts">
  <ActivityId>fcc8f256-6b47-43ec-8529-8d12cca58f9e</ActivityId>
  <ErrorCode>-2147187707</ErrorCode>
  <ErrorDetails xmlns:d2p1="schemas.datacontract.org/.../System.Collections.Generic" />
  <Message>Access is denied.</Message>
  <Timestamp>2019-01-22T12:45:32.5557354Z</Timestamp>
  <ExceptionRetriable>false</ExceptionRetriable>
  <ExceptionSource i:nil="true" />
  <InnerFault i:nil="true" />
  <OriginalException i:nil="true" />
  <TraceText i:nil="true" />
</OrganizationServiceFault>

We are using:

MS Dynamics 365 version 1612 (8.2.2.112) (DB 8.2.2.112) on-premises

It will great to hear from you all :)

Best Regards.