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Microsoft 365 & Identity
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Page 32 of the DSE Microsoft 365 & Identity knowledge center, with source-backed guidance and practical next steps.

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Microsoft 365 & Identity knowledge center

Clear guidance for Microsoft 365, Entra identity, account protection, collaboration, endpoint policy, and lifecycle changes.

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Microsoft 365 & Identity

760 articles
DSE visual briefNetworks & infrastructure

Stage Abandoned objects block replication for Global Catalog naming contexts with AD/DNS rollback checks

Microsoft states: “In Active Directory Domain Services (AD DS), abandoned objects are objects that exist on some domain controllers (DCs) in the forest but that are never replicated to all DCs.”

Published Reviewed 3 min readBy DSE Security Editorial Team
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DSE visual briefIdentity & cloud

Review Active Directory replication Event ID 2087 (DNS lookup failure caused replication to fail) before AD/DNS changes

Microsoft states: “This article provides a solution to the Active Directory replication Event ID 2087 that occurs when a Domain Name System (DNS) lookup failure causes replication to fail.”

Published Reviewed 3 min readBy DSE Security Editorial Team
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DSE visual briefNetworks & infrastructure

Scope Troubleshoot AD Replication error 8240 There is no such object on the server in observed AD/DNS state

Microsoft states: “This article discusses the symptoms, cause, and resolution for Active Directory Domain Services (AD DS) operations that fail and generate Win32 error 8240: "There is no such object on the server."”

Published Reviewed 3 min readBy DSE Security Editorial Team
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