Updates an existing state machine by modifying its
definition,
roleArn,
loggingConfiguration, or
EncryptionConfiguration. Running executions will continue to use the previous
definition and
roleArn. You must include at least one of
definition or
roleArn or you will receive a
MissingRequiredParameter error.
A qualified state machine ARN refers to a
Distributed Map state defined within a state machine. For example, the qualified state machine ARN
arn:partition:states:region:account-id:stateMachine:stateMachineName/mapStateLabel refers to a
Distributed Map state with a label
mapStateLabel in the state machine named
stateMachineName.
A qualified state machine ARN can either refer to a
Distributed Map state defined within a state machine, a version ARN, or an alias ARN.
The following are some examples of qualified and unqualified state machine ARNs:
- The following qualified state machine ARN refers to a Distributed Map state with a label mapStateLabel in a state machine named myStateMachine. arn:partition:states:region:account-id:stateMachine:myStateMachine/mapStateLabel If you provide a qualified state machine ARN that refers to a Distributed Map state, the request fails with ValidationException.
- The following qualified state machine ARN refers to an alias named PROD. arn:<partition>:states:<region>:<account-id>:stateMachine:<myStateMachine:PROD> If you provide a qualified state machine ARN that refers to a version ARN or an alias ARN, the request starts execution for that version or alias.
- The following unqualified state machine ARN refers to a state machine named myStateMachine. arn:<partition>:states:<region>:<account-id>:stateMachine:<myStateMachine>
After you update your state machine, you can set the
publish parameter to
true in the same action to publish a new
version. This way, you can opt-in to strict versioning of your state machine.
Step Functions assigns monotonically increasing integers for state machine versions, starting at version number 1.
All
StartExecution calls within a few seconds use the updated
definition and
roleArn. Executions started immediately after you call
UpdateStateMachine may use the previous state machine
definition and
roleArn.