--- acl_categories: - '@fast' - '@transaction' arity: 1 categories: - docs - develop - stack - oss - rs - rc - oss - kubernetes - clients command_flags: - noscript - loading - stale - fast - allow_busy complexity: O(1) description: Starts a transaction. group: transactions hidden: false linkTitle: MULTI railroad_diagram: /images/railroad/multi.svg since: 1.2.0 summary: Starts a transaction. syntax_fmt: MULTI title: MULTI --- {{< note >}} This command's behavior varies in clustered Redis environments. See the [multi-key operations]({{< relref "/develop/using-commands/multi-key-operations" >}}) page for more information. {{< /note >}} Marks the start of a [transaction][tt] block. Subsequent commands will be queued for atomic execution using [`EXEC`]({{< relref "/commands/exec" >}}). [tt]: /develop/interact/transactions ## Redis Software and Redis Cloud compatibility | Redis
Software | Redis
Cloud | Notes | |:----------------------|:-----------------|:------| | ✅ Standard
✅ Active-Active | ✅ Standard
✅ Active-Active | | ## Return information {{< multitabs id="multi-return-info" tab1="RESP2" tab2="RESP3" >}} [Simple string reply](../../develop/reference/protocol-spec#simple-strings): `OK`. -tab-sep- [Simple string reply](../../develop/reference/protocol-spec#simple-strings): `OK`. {{< /multitabs >}}