|Event ID|Event name|Description|
|-----|-----|-----|
|2503|Add/Update/Delete directories|Provides the name of the affected directory.|
|2504|Enable Express settings mode| This event is logged after the administrator selects **Express Setup**.|
|2505|Enable/Disable domains and organizational units (OUs) for sync| Shows a list of all domains connected to Microsoft Entra Connect Sync.|
|2506|Enable/Disable password hash synchronization (PHS) sync| Shows that PHS is enabled or disabled.|
|2507|Enable/Disable sync start after installation| Event is logged when sync is enabled or disabled after the installation is finished.|
|2508|Create Active Directory Domain Services (AD DS) account| Shows the created account needed to connect to the new directory added.|
|2509|Use existing ADDS account| Shows the name of the account used to connect to the directory.|
|2510|Create/Update/Delete custom sync rule| Shows the name of the sync rule that changed along with information on what changed.|
|2511|Enable/Disable domain-based filtering|Shows that domain filtering is selected and lists selected domains.|
|2512|Enable/Disable OU-based filtering| Shows that OU-based filtering is selected and lists selected OUs. |
|2513|User sign-in method changed|Shows the old sign-in method and the new one. |
|2514|Configure new Active Directory Federation Services (AD FS) farm| Shows the federation services name.|
|2515|Enable/Disable single sign-on| Shows single sign-on change. |
|2516|Install web application proxy server|Shows selected ADFS servers and the domain admin username.|
|2517|Set permissions| Shows the specific AD Sync permission that changed.|
|2518|Change ADDS Connector credential| Shows the ADDS Connector credential that changed.|
|2519|Reinitialize Entra ID Connector account password| Shows that the AD Sync account password was reset.|
|Event ID|Event name|Description|
|-----|-----|-----|
|2503|Add/Update/Delete directories.|Provides the name of the affected directory.|
|2504|Enable Express settings mode.| This event is logged after the administrator selects **Express Setup**.|
|2505|Enable/Disable domains and organizational units (OUs) for sync.| Shows a list of all domains connected to Microsoft Entra Connect Sync.|
|2506|Enable/Disable password hash synchronization (PHS) sync.| Shows that PHS is enabled or disabled.|
|2507|Enable/Disable sync start after installation.| Event is logged when sync is enabled or disabled after the installation is finished.|
|2508|Create Active Directory Domain Services (AD DS) account.| Shows the created account needed to connect to the new directory added.|
|2509|Use existing AD DS account.| Shows the name of the account used to connect to the directory.|
|2510|Create/Update/Delete custom sync rule.| Shows the name of the sync rule that changed along with information on what changed.|
|2511|Enable/Disable domain-based filtering.|Shows that domain filtering is selected and lists selected domains.|
|2512|Enable/Disable OU-based filtering.| Shows that OU-based filtering is selected and lists selected OUs. |
|2513|User sign-in method changed.|Shows the old sign-in method and the new one. |
|2514|Configure new Active Directory Federation Services (AD FS) farm.| Shows the federation services name.|
|2515|Enable/Disable single sign-on.| Shows single sign-on change. |
|2516|Install web application proxy server.|Shows selected AD FS servers and the domain admin username.|
|2517|Set permissions.| Shows the specific ADSync permission that changed.|
|2518|Change AD DS Connector credential.| Shows the AD DS Connector credential that changed.|
|2519|Reinitialize Entra ID Connector account password.| Shows that the ADSync account password was reset.|