API Reference > imodeljs-backend > iModels > BriefcaseDb > concurrencyControl concurrencyControl Readonly Beta concurrencyControl: ConcurrencyControl Get the ConcurrencyControl for this iModel. The concurrency control is used available only if the briefcase has been setup to synchronize changes with iModelHub (i.e., syncMode = SyncMode.PullAndPush), and has been opened ReadWrite (i.e., openMode = OpenMode.ReadWrite) Defined in core/backend/src/IModelDb.ts Line 2191 Last Updated: 11 June, 2024