Merge Multiple n8n Runs into Single Item List

This n8n workflow addresses a common pain point when using Loop Over Items nodes: executions split data into separate 'runs,' complicating downstream processing. The core Code node iteratively fetches and concatenates all items from a specified upstream node (e.g., 'NoOp') across runs, returning a single flat array. Setup is straightforward—trigger manually, optionally fetch initial data (example uses Customer Datastore), simulate or integrate with loops via Wait and IF checks for completion (v