API Reference > imodeljs-backend > iModels > TxnManager > onElementsChanged onElementsChanged Readonly onElementsChanged: BeEvent<(changes: TxnChangedEntities) => void> = ... Called after validation completes from IModelDb.saveChanges. The argument to the event holds the list of elements that were inserted, updated, and deleted. note If there are many changed elements in a single Txn, the notifications are sent in batches so this event may be called multiple times per Txn. Defined in core/backend/src/TxnManager.ts Line 326 Last Updated: 11 June, 2024