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0x00000561

ERROR_MEMBER_NOT_IN_ALIAS

The specified account name is not a member of the group.

win32decimal 1377

Matched as: the code as given (hex)

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Source: System Error Codes (1300-1699) - Win32 apps · CC-BY-4.0 (MicrosoftDocs/sdk-api, repo license verified 2026-10-09) · retrieved 2026-10-09