ERROR_DS_GLOBAL_CANT_HAVE_CROSSDOMAIN_MEMBER - 8519 (0x2147)
A global group cannot have a cross-domain member.
Updated: Feb 21, 2026
Technical Meaning
This error code indicates that an attempt was made to add a member from one domain to a global security group in another domain, which is not allowed by the Active Directory schema and policy.
Error Details
The specific condition under which this error occurs is when a global security group (a type of object in Active Directory) is being modified, and an attempt is made to add a member that belongs to a different forest or domain. This operation is restricted due to cross-domain membership rules enforced by the Active Directory schema.
Usage Context
This error typically arises during operations involving group management within an Active Directory environment where multiple domains are involved. It can occur when using tools such as dsmod or through Group Policy settings that manage group memberships across domains.
Developer Interpretation
When encountering this error, developers should understand that it is a policy enforced by the Active Directory schema and cannot be bypassed directly via programming interfaces. Developers must ensure that operations involving global security groups respect domain boundaries as defined in the directory service.
Related Errors
ERROR_DS_CROSS_DOMAIN_MEMBER(8517): Indicates an attempt to add a member from one domain to a group in another domain, but without the specific restriction on global groups.ERROR_DS_CANT_MODGLOBALGROUPMEMBER(8520): A similar error that occurs when attempting to modify members of a global security group within the same domain.
FAQ
Q: Can this error be ignored?
A: No, it is a policy enforced by Active Directory and cannot be ignored. It indicates an attempt to violate cross-domain membership rules.
Q: How can I resolve this issue?
A: Ensure that any operations involving global security groups respect the domain boundaries as defined in your directory service configuration.
Summary
The ERROR_DS_GLOBAL_CANT_HAVE_CROSSDOMAIN_MEMBER error code (8519) is a specific technical condition encountered when attempting to add a cross-domain member to a global security group. It highlights the enforcement of Active Directory schema policies and should be handled by respecting domain boundaries in directory service operations.