ERROR_DS_CONSTRAINT_VIOLATION - 8239 (0x202F)
A constraint violation occurred.
Updated: Feb 21, 2026
Technical Meaning
The error code ERROR_DS_CONSTRAINT_VIOLATION with the numeric value 8239 and hexadecimal representation 0x202F indicates that a constraint has been violated during an operation. This can occur in various contexts within the Windows operating system, particularly when interacting with directory service (DS) components.
Error Details
The term 'constraint' refers to a rule or condition that must be met for an operation to proceed successfully. When this error is encountered, it suggests that one or more constraints were not satisfied during the execution of a specific function or method.
Usage Context
This error can appear in various scenarios where directory service operations are performed. For example, it might occur when attempting to modify attributes of an object, add or delete entries, or perform other administrative tasks within Active Directory or similar directory services.
Developer Interpretation
Developers should interpret this error as a signal that the operation being attempted is not permissible under the current conditions. The exact nature of the constraint violation can vary depending on the specific context in which it occurs. Developers are advised to review the parameters and conditions associated with the operation to identify the root cause.
Related Errors
ERROR_DS_ATT_ALREADY_EXISTS(8419): Indicates that an attribute already exists.ERROR_DS_DRA_SCHEMA_INFO_ERROR(3265): Suggests a schema information error during replication.ERROR_DS_OBJECT_CLASS_VIOLATION(8017): Implies that the object class is not valid for the operation.
FAQ
Q: What does ERROR_DS_CONSTRAINT_VIOLATION mean?
A: It indicates that a constraint has been violated, preventing an operation from completing successfully.
Q: How can I resolve this error?
A: Review the parameters and conditions associated with the operation to ensure they meet all necessary constraints before retrying the operation.
Summary
The ERROR_DS_CONSTRAINT_VIOLATION (8239) is a specific technical error indicating that a constraint has been violated. Developers should focus on validating input parameters and ensuring compliance with operational constraints when encountering this error.