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ERROR_DS_HIGH_DSA_VERSION
The directory rejected a lower behavior level for the domain or forest
Functional levels are directory behavior contracts, not display labels. Lowering them can conflict with features or directory state introduced at a higher level. Windows supports rollback only for documented combinations and releases; a generic request to set an arbitrary earlier value is rejected with this status.
Identify whether the attempted change targets the domain or forest, record the current mode, and check Microsoft documentation for a supported rollback path from that exact level. Do not change msDS-Behavior-Version directly. If a lower-level DC must be introduced, first verify that the desired server version and rollback scenario are supported rather than assuming a metadata edit will restore older behavior.
What to inspect
- Record the current and requested functional levels and whether the scope is domain or forest.
- Check the supported rollback matrix for the Windows Server releases involved.
- Verify enabled forest features before any supported lowering operation.
References
- Microsoft: AD DS functional levels
- Microsoft: Directory Services component updates
- MS-ADTS: behavior-version updates
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