Error Updating SID History: The parameter is incorrect
Written by Tawfik Chelli
Updated at January 14th, 2026
Table of Contents
Overview
When attempting to Sync SID History, you may encounter the following error:
Error updating SID history: The parameter is incorrect
Root Cause
The issue is caused by an incorrect username format configured in the directory.
SID History operations require the user account to be referenced in a fully qualified and supported format. If the username is provided in a partial or unsupported format, the process fails and returns the generic "The parameter is incorrect" error.
Correct Username Formats
To resolve this issue, ensure that the username Directory configuration is set to one of the following valid formats:
Full UPN format
Pre-Windows 2000 logon format
DOMAIN\user
⚠️ Formats such as user alone are not supported for SID History sync.