Key/Value Tracking Pattern v1
The Key/Value Tracking pattern uses Key/Value Nodes to track data as it moves through an integration.
Review Patterns: Key/Value Tracking from the v1 Runtime Certification course for a full worked example.
The certification example is v1 Runtime. A v2 Runtime implementation should use the currently discovered key/value Method contract, preserve Site and Environment scope, use stable business keys, and avoid treating activation-scoped Workflow state as durable tracking.