Export: On the builder, click Export (next to Save). The journey is downloaded as JSON (workflowData: nodes, edges, apiConfig, variableConfig).
Import: Click Import (before Export), choose a JSON file. The system validates structure (nodes, edges, ids, no duplicates) and shows a warning before replacing the current canvas, API config, and variable config. Use Export for backup or copy to another account; use Import to restore or clone from a file.