Windows error 8454 (ERROR_DS_DRA_NOT

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The requested replication operation is not supported by this directory-service version.

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ERROR_DS_DRA_ACCESS_DENIED	ERROR_DS_DRA_RPC_CANCELLED

ERROR_DS_DRA_NOT_SUPPORTED

ERROR_DS_DRA_NOT_SUPPORTED (8454) is an Active Directory replication error. The replication operation requires a capability that the participating directory-service version does not support. Check feature and server-version compatibility before changing the replication topology.

What to check

Identify the source and destination Windows Server versions and the exact replication operation being requested.
Check whether a newer directory-service capability, schema update, or application partition is being introduced into an older environment.
Use supported upgrade planning rather than forcing the operation through an unsupported API path.

Useful command

repadmin /showrepl <DestinationDC> /all /verbose

Microsoft: Diagnose AD replication failures · Microsoft: FSMO roles in Active Directory · Microsoft: Troubleshoot AD replication problems

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