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ERROR_DS_LINK_ID_NOT_AVAILABLE
No usable linked-attribute identifier can be assigned
A nonzero linkID identifies an Active Directory linked attribute and participates in forward-link and back-link pairing. This status indicates that the schema update cannot obtain an available identifier for the new linked attribute. It differs from a duplicate link ID, where a particular proposed value collides with an existing schema object.
Inventory the schema definitions that already carry linkID values and verify the extension is using supported automatic or documented allocation behavior. Repeated schema imports can also reveal deployment logic that creates new definitions instead of recognizing an existing one. Because link pairing is semantic, manually recycling an ID from an old attribute can bind the wrong forward and backward relationship.
What to inspect
- Search the schema NC for existing linkID assignments and the proposed linked attributes.
- Determine whether the same extension was partly or fully installed earlier.
- Do not reuse a deployed link ID without proving the original schema relationship is obsolete and safely migrated.
References
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