ERROR_DS_ILLEGAL_BASE_SCHEMA_MOD - 8507 (0x213B)

Technical Meaning

The error code ERROR_DS_ILLEGAL_BASE_SCHEMA_MOD with the numeric value 8507 and hexadecimal representation 213B indicates that an attempt has been made to modify a base schema in a directory service, which is not allowed. This typically occurs when operations are attempted on critical or immutable parts of the schema.

Error Details

The base schema in Active Directory (AD) defines the structure and attributes that can be used within the directory. Modifying this schema requires specific permissions and is often restricted to administrators with elevated privileges. Attempting an operation that would alter the base schema without proper authorization or context results in this error.

Usage Context

This error code is relevant in scenarios where changes are attempted on the core structure of a directory service, such as adding, removing, or modifying critical attributes and classes. It can occur during operations performed through the Windows API or other administrative tools that interact with AD.

Developer Interpretation

Developers should interpret this error as an indication that the operation being attempted is not permitted due to its nature or the current state of the schema. This could be due to incorrect parameters, insufficient privileges, or attempting to modify a read-only part of the schema. Developers must ensure that operations are performed in a context where such modifications are allowed and with appropriate permissions.

Related Errors

• ERROR_DS_SCHEMA_MISMATCH (8512): Indicates a mismatch between expected and actual schema versions.
• ERROR_DS_ATTRIBUTE_OR_VALUE_EXISTS (8046): Suggests that an attribute or value already exists, preventing the operation from completing successfully.

FAQ

Q: What does this error mean?

A: This error indicates that an attempt was made to modify a base schema in Active Directory, which is not allowed due to its critical nature or current state of the schema.

Q: How can I resolve this issue?

A: Ensure that you have the necessary permissions and are operating within the correct context. Verify that the operation being attempted is appropriate for the current state of the schema.

Summary

The ERROR_DS_ILLEGAL_BASE_SCHEMA_MOD error code (8507) signifies an attempt to modify a base schema in Active Directory, which is not permitted due to its critical nature or current state. Developers should ensure that operations are performed with appropriate permissions and context to avoid this error.