• When setting up a iTwin Project, be sure to invite yourself to the connect project. This step allows the iTwin Project to appear from the drop down when selecting the project during Synchronization creation.

• Create an empty iModel on iModelHub at the time of iTwin Project Creation. You will need to have this defined in order to create a Synchronization in the iTwin Synchronizer.

• iModels and synchronization jobs are to be long-lived Digital Twins for the life cycle of the asset. A synchronization should be regularly re-run with small sets of changes to track the history of the project.

• Once a team coordinator creates a synchronization job, each team member should regularly synchronize their own changes to the iModel to create a detailed change history. The more changes that are synchronized, the better the details of the project will be.

• Multiple copies of the same file on different machines are discouraged due to a high risk of causing change conflicts that would be out of synch with the most current changes. Having multiple copies of files require coordination by the Team Coordinator if there is no managed file system in place, such as ProjectWise.

• User must select the master files to be synchronized when creating a synchronization and not select reference files.

• The iTwin Synchronizer can be installed on multiple desktops for teams of users who will be synchronizing their data to the iModelHub.

• It is recommended that synchronizing Design Data to an iModel should be done with files that are stored or located at a common location that can be accessed by all Team Members.

• Please be patient during the first synchronization of the Design Data to the iModel on the iModelHub. Network speeds can greatly affect the time.

• Enabling the iModel Bridges while setting up a synchronization may take some time. iModel Bridges will also be updated frequently to provide the best element fidelity to your Design Data. Please be patient as the iModel Bridges are enabled during a synchronization.

For users synchronizing MicroStation DGN files

• If you wish to bridge 3D elements, then the master files must be the files that contain the 3D master models. They should not be sheet models.

• The active view of those master files must be views of the 3D master models. They must not be views of sheets.

• If there are sheets and drawings in other, separate files, they should also be selected as master files. Select the 3D master files and run the bridge. If you don't see all of your sheets and drawings, then select the files that contain them and try again.

• If you wish to bridge all 2D elements, such as PID drawings, then the master files would be the files containing the 2D models.