API Reference > imodeljs-backend > iModels > TxnManager > beginMultiTxnOperation beginMultiTxnOperation Method Begin a new multi-Txn operation. This can be used to cause a series of Txns that would normally be considered separate actions for undo to be grouped into a single undoable operation. This means that when reverseTxns(1) is called, the entire group of changes are undone together. Multi-Txn operations can be nested and until the outermost operation is closed all changes constitute a single operation. beginMultiTxnOperation(): DbResult note This method must always be paired with a call to endMultiTxnAction. Returns - DbResult Defined in core/backend/src/TxnManager.ts Line 394 Last Updated: 11 June, 2024