Skype for Business 2015 Enabling topology error

We have 5 site for skype for business. i am getting below error while installation a new topology to new skype site. I found  dupicate pool in ADSI edit, i deleted one which was duplicate. after deletion trying to publish topology but getting an below error

Error: An error occurred: "System.IO.InvalidDataException" "Multiple Active Directory entries were found for type "ms-RTC-SIP-TrustedService" with ID "ajoc-sk.ops.mod,QoS"."

Skype-error.JPGSkype-error.JPG
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Pankaj VermaVMware ConsultantAsked:
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MASEE Solution Guide - Technical Dept HeadCommented:
Hi Pankaj,
Please try the below commands to check.
Import-Module ActiveDirectory

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Get-ItemProperty -Path “AD:\CN=*,CN=Global Settings,CN=RTC Service,CN=Services,CN=Configuration,DC=domain,DC=local” -Name cn,msRTCSIP-TrustedServerFQDN,objectClass,whenChanged | Group-Object -Property msRTCSIP-TrustedServerFQDN | Where-Object {$_.Count -gt 1} | Select-Object -ExpandProperty Group | ?{$_.objectClass -eq “msRTCSIP-TrustedServer”} | Select cn,msRTCSIP-TrustedServerFQDN,whenChanged | ft -AutoSize

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Can you see duplicate entries.
Please check this as well for more details.
https://blogs.technet.microsoft.com/uclobby/2015/06/16/checking-for-ms-rtc-sip-trustedserver-multiple-active-directory-entries-with-powershell/
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Pankaj VermaVMware ConsultantAuthor Commented:
Thanks for info.. MAS . I  checked this url before but which one is to be delete   how to verify that..?
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MASEE Solution Guide - Technical Dept HeadCommented:
You can delete the one which is created before if it is a new deployment.
You can check by date/time.
You can delete from ADSI.
Note: Please be extremely careful. Take a backup of system state before deletion.
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Pankaj VermaVMware ConsultantAuthor Commented:
Dear MAS


I have deleted from Active Directory but still i am getting an below error. i verified in all Domain controllers there in no ID in CN:Globalsetting

Error: An error occurred: "System.IO.InvalidDataException" "Multiple Active Directory entries were found for type "ms-RTC-SIP-TrustedService" with ID "ajoc-sk.ops.mod,QoS"."

  Topology Error
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Pankaj VermaVMware ConsultantAuthor Commented:
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