API Reference > imodeljs-backend > iModels > ConcurrencyControl > ConcurrencyControl.LocksManager > lockModels lockModels Method Lock the specified models exclusively. lockModels(requestContext: AuthorizedClientRequestContext, models: ModelProps[]): Promise<void> Parameter Type Description requestContext AuthorizedClientRequestContext RequestContext models ModelProps[] the models to lockSee LockHandler for details on what errors may be thrown. Returns - Promise<void> Defined in core/backend/src/ConcurrencyControl.ts Line 1343 Last Updated: 29 November, 2022