Replication Status Viewer

Replication Status Viewer

After Replication Status data has been collected the screen is automatically switched to the Replication Status Viewer unless a failure occured during discovery.


The Grid view is automatically expanded to group by all Destination DCs, and then by Source DCs.

The expanded grid groups can be collapsed. Click Collapse Grid Groups to collapse one level of groups, the last column grouped by will collapse.


Error Legend status bar
The Error Legend is an optional status bar which can be hidden or made visible at the bottom of the Replication Status Viewer. On the Home tab, in the Views group, click Show/Hide Error Legend to hide or show the Error Legend status bar.

The Error Legend status bar contains six color codes.


25% of TSL
50% of TSL
75% of TSL
90% of TSL

>100% of TSL





Depending on when replication was last successful for a partition, a row color can be blank or any of the above colors.
If the TombStoneLifetime is 60 Days and the last successful replication was less than 15 days ago the row will be highlighted in Brown-Red. If the last successful replication was more than 15 days ago but less than 30 the row will be highlighted in Blue, if the last successful replication was over 30 days ago the row will be highlighted in yellow, etc.


Hide/unhide columns
By default the Replication Statues Viewer displays columns as discussed below. You have the option to hide columns or make columns visible. To do this, right-click a column header and choose click the column names you want to view or hide. Not all columns are displayed in the default view.


Sort and Grouping view
You can click on any column header to sort the AD Replication Status data in A-Z order, 0-9 order or vice versa.

You can also change the grouping view. By default the view is grouped by Destination DC and then within each Destination DC it is grouped by Source DC.
To change the grouping view, d
rag one or more column headers to the pane just above the header. 
You can drag any column header to this pane to have the grouping view you want.

To remove a column from the grouping view, drag the column header back to the column headers and release it when a black X is displayed.

The sort function can be used in conjunction with the grouping view. For example, to see most current to least current replication failures grouped by replication error, create a grouping for "Last Sync Result" and sort the "last Successful Sync" column in oldest to newest order.

Save Adjusted Grid View Settings.

To save any change to the default grid view, such as adding and removing columns or changing the grouped view, click Save Grid View Settings? in the Options group on the Home tab. The next time the AD Replication Status Tool is started the saved Grid View will be the default Grid View.
Click Load Default Grid View Settings to revert the grid view back to the default settings and undo any changes made.


  • Last Sync Result
    • Displays an error code if the last sync result was unsuccessful.
      • The Error code detailed information can be viewed in the Replication Error Guide.
      • Typing in a command prompt "Net helpmsg <errorcode>" will display detailed information on the error code.
  • Dest DC
    • FQDN of the Destination DC
  • Dest DC Domain
    • DNS name of the Destination DC's domain.
  • Dest DC Site Name
    • Displays the site name where the Destination DC is located.
  • Dest DC is GC?
    • Displays if the Destination DC is a Global Catalog.
  • Dest DC is RODC?
    • Displays if the Destination DC is a read Only Domain Controller.
  • Partition Name
    • Displays the name of the Naming Context.
  • Last Sync Message
    • Displays the message that was returned during the last Sync.
  • Source DC
    • FQDN of the Source DC where the destination DC pulls changes from.
  • Source DC Domain
    • DNS name of the Source DC domain.
  • Source DC Site Name
    • Displays the site name where the Source DC is located.
  • Source DC is GC?
    • Displays if the Source DC is a Global Catalog.
  • Source DC is RODC?
    • There should not be any checkbox selected for an RODC. An RODC cannot be the source DC for any other DC.
  • Last Successful Sync
    • Displays the time when the last successful sync took place.
  • Last Attempted Sync
    • Displays when the last sync was attempted.
  • Consecutive Failure Count
    • Displays a value if consecutive failures occur during replication.


Some columns are not visible by default but can be made visible in the grid by right clicking on any column header and then click the unchecked column. It is also possible to hide default columns from the grid by clicking the checked column.
The following extra columns are available:

  • Largest Delta
    • Longest amount of time it takes or has taken to replicate any one of its NCs (from the point AD Replication Status tool was run). 
    • If replication is successful for all NCs, this is an accurate indication of the last time the DC replicated
    • If replication has any failures, it shows the delta for the NC that has been failing for the longest period. For example, a largest delta of two days does not necessarily mean that the DC has failed to replicate for two days. Instead, it means that at least one of its NCs has not replicated for two days. The other NCs may have replicated just moments ago.
  • Transport Type
    • Displays the transport that the connection object uses
  • Replication Neighbor Options
  • Source Invocation ID
    • Displays the Invocation ID (Server Database Guid) of the Source DC.
  • USN Last Object Change Synced
    • Displays the USN of the last object that was synced from the Source DC.
  • USN Attribute Filter
    • Displays the USN value for the last successful replication cycle.


View Errors Only


To only view errors in the Replication Status Viewer screen click Errors Only in the Data group on the Home tab. The view will then be adjusted to only display rows with errors.
Using this view you can quickly see all Destination DCs that have replication errors and their Source DCs.
Click Errors Only again to have all rows displayed.

Depending on the screen resolution the tool might not be able to fully display all command groups and you might see groups collapsed as in the above image for the Data and Options groups. Click the down arrow on the collapsed group name to display all command in that group.