To update an existing ISM repository from the currently loaded RAM Structural System model, use the following procedure.

1. Select Bentley Cloud Services > iTwin Services to display the iTwin commands on the side panel.
2. Verify that the file listed under the Synchronize to File heading is the desired file name. Hover the cursor over the filename to see a display of the entire file path and name. If that is not the desired file, click on that filename to bring up the Setup Local Sync dialog, select Select and navigate to the desired file, and then select Confirm.
3. Select Push to file.
4. (Optional) In the Push to file dialog, toggle on the Show change management option. This will cause the iTwin Analytical Synchronizer to be launched in Step 10. If the option is not toggled on, Steps 10 and 11 will be skipped.
5. Select Push.
6. If the RAM Structural System has not been saved, a message will be given. Save the model to continue.
7. The Create Repository progress dialog will appear, and then the Mappings dialog will open. If the model has Composite or Noncomposite decking, the decking will be listed on the Slabs/Decks tab. If the association was done previously it is not necessary to repeat these steps. Otherwise, if in the iTwin Steel Deck column there are any decks that indicate "<Not Mapped>", those decks should be associated with a deck recognized by the iTwin. To properly associate the decking to that recognized by iTwin, do the following:
   1. Select a deck from the list and select Edit.
   2. Unselect the No Mapping option.
   3. Select the iTwin deck type that mostly closely matches the intended deck profile (the iTwin currently only recognizes a small subset of decks) and select OK.
   4. Repeat for each deck in the list.
   The Operation Settings tab has several settings that allow for adjustments pertaining to tolerances, nodes, elements, etc. It isn’t generally necessary to make changes to these settings, but in some cases can be adjusted to refine the transfer of model information. Make changes, as desired.
8. Select OK or Cancel to dismiss the Mappings dialog.
9. After the iTwin has been created, the iTwin Analytical Synchronizer will be launched, and the iTwin displayed. Model entities can be Accepted or Rejected (that is, included or excluded from the iTwin model) as desired. See the iTwin Analytical Synchronizer Help for information on using that application. Select Update to save the iTwin.
10. In the Commit Message dialog enter a Commit Message describing this version of the iTwin model, and select OK.
11. Select Show Details to view a list of any errors that occurred during the creation of the iTwin.
12. Select Close to close the Create Repository dialog.
13. On the iTwin Services panel, select the X icon next to Push to file to close the command and return to the standard iTwin Services panel view.
14. Before exiting the RAM Structural System, save the model so that the model’s association with the iTwin will be preserved.