ERROR_NO_SUCH_GROUP - 1319 (0x527)

The specified group does not exist.

Updated: Feb 21, 2026

Technical Meaning

The error code ERROR_NO_SUCH_GROUP with the numeric value 1319 and hexadecimal representation 0x527 indicates that a specified group does not exist in the system. This error is typically encountered during operations involving group membership checks or when attempting to manipulate non-existent groups.

Error Details

This error code is returned by various Windows APIs, such as those related to user and group management, authentication, and authorization mechanisms. It signifies that a requested operation could not proceed because the specified group identifier does not correspond to any existing group in the system's security database.

Usage Context

The ERROR_NO_SUCH_GROUP error can occur in several scenarios within Windows systems:

  • During user or group enumeration operations.
  • When attempting to add a user to a non-existent group.
  • In authentication processes where a specified group is required for access control.
  • While managing security policies that involve specific groups.

Developer Interpretation

Developers should interpret this error code as an indication that the operation could not be completed due to the absence of the specified group. This may require validation and correction of input parameters or context before retrying the operation. It is important for developers to ensure that all group identifiers used in their applications are valid and exist within the system's security database.

Related Errors

  • ERROR_GROUP_EXISTS (1350, 0x546) - Indicates an attempt to create a group that already exists.
  • ERROR_INVALID_PARAMETER (1289, 0x505) - General error for invalid parameters, which may include incorrect group identifiers.

FAQ

Q: What does the ERROR_NO_SUCH_GROUP error mean?

A: It indicates that a specified group does not exist in the system's security database.

Q: How can I handle this error in my application?

A: Validate the group identifier and ensure it exists before performing operations that require group membership or management.

Summary

The ERROR_NO_SUCH_GROUP error code (1319, 0x527) is a generic reference indicating that a specified group does not exist. Developers should interpret this as an invalid parameter scenario and ensure all group identifiers are correct and valid before proceeding with operations involving groups.