ERROR_DS_WRONG_LINKED_ATT_SYNTAX - 8528 (0x2150)

The syntax of the linked attribute being added is incorrect. Forward links can only have syntax 2.5.5.1, 2.5.5.7, and 2.5.5.14, and backlinks can only have syntax 2.5.5.1.

Updated: Feb 21, 2026

Technical Meaning

The error code ERROR_DS_WRONG_LINKED_ATT_SYNTAX indicates that the syntax of a linked attribute being added to an Active Directory object is incorrect. This error specifically pertains to the validation of attribute syntax during operations involving directory links.

Error Details

This error occurs when attempting to add a forward link or a backlink with an inappropriate syntax. The acceptable syntaxes for forward links are 2.5.5.1, 2.5.5.7, and 2.5.5.14, while the acceptable syntax for backlinks is only 2.5.5.1.

Usage Context

This error typically arises during operations such as adding or modifying directory links in an Active Directory environment. It is important to ensure that the attribute syntax adheres to the specified standards to avoid this error.

Developer Interpretation

Developers should be aware of the specific syntax requirements for forward and backlinks when working with Active Directory attributes. Failure to meet these requirements will result in the ERROR_DS_WRONG_LINKED_ATT_SYNTAX being returned, indicating that the operation cannot proceed due to an incorrect attribute syntax.

Related Errors

FAQ

Q: What does the ERROR_DS_WRONG_LINKED_ATT_SYNTAX error mean?

A: This error indicates that the syntax of a linked attribute being added is incorrect, specifically not adhering to the required standards for forward or backlinks.

Q: How can I resolve this error?

A: Ensure that the attribute syntax used in your operations complies with the specified requirements for forward and backlinks. Consult the Active Directory documentation for detailed syntax specifications.

Summary

The ERROR_DS_WRONG_LINKED_ATT_SYNTAX is a specific error code indicating an incorrect attribute syntax during directory link operations. Developers must adhere to the prescribed syntax rules to avoid this error.