targets

The targets (either managed nodes or maintenance window targets).

One or more targets must be specified for maintenance window Run Command-type tasks. Depending on the task, targets are optional for other maintenance window task types (Automation, Lambda, and Step Functions). For more information about running tasks that don't specify targets, see Registering maintenance window tasks without targets in the Amazon Web Services Systems Manager User Guide.

Specify managed nodes using the following format:

Key=InstanceIds,Values=<instance-id-1>,<instance-id-2>

Specify maintenance window targets using the following format:

Key=WindowTargetIds,Values=<window-target-id-1>,<window-target-id-2>