BriefcaseIdValue Enumeration
Values of BriefcaseId that have special meaning.
Members
| Name | Value | Description | 
| FirstValid |  | All valid iModelHub issued BriefcaseIds will be equal or higher than this | 
| Illegal |  | Indicates an invalid/illegal BriefcaseId | 
| LastValid |  | All valid iModelHub issued BriefcaseIds will be equal or lower than this | 
| Max |  | BriefcaseIds must be less than this value | 
| Unassigned |  | The briefcase has not been assigned a unique Id by iModelHub. Only briefcases that have been assigned a unique BriefcaseId may create changesets, because BriefcaseId is used to create unique ElementIds for new elements.
 
 The
 UnassignedbriefcaseId is used for several purposes:- Snapshots. Snapshot files are immutable copies of an iModel for archival or data exchange purposes. They can neither generate nor accept new changesets.
 - Checkpoints. Checkpoints are Snapshots that represent a specific version on an iModel's timeline.
 - PullOnly. A local briefcase file that may be used to "slide" along a timeline by applying incoming changesets.
 They are always opened readonly except to apply changesets.
 - Standalone. Standalone iModels are local files that are not connected to iModelHub, and therefore cannot accept or create changesets.
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Defined in
Last Updated: 24 June, 2025