operationId

The unique ID for this StackSet operation.

The operation ID also functions as an idempotency token, to ensure that CloudFormation performs the StackSet operation only once, even if you retry the request multiple times. You might retry StackSet operation requests to ensure that CloudFormation successfully received them.

If you don't specify an operation ID, CloudFormation generates one automatically.

Repeating this StackSet operation with a new operation ID retries all stack instances whose status is OUTDATED.