A callback for notifying an IExternalResourceServer that shared coordinates changes have been saved back to one of the Revit or DWG links provided by that server. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 18.0.0.0 (18.2.0.0) 
  Since:  2015 
Syntax
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Remarks
 Revit will call OnLocalLinkSharedCoordinatesSaved whenever shared coordinates changes are saved to a linked document which is provided by an external server. This is a notification to the server provider so they can copy the updated link back up to their server.