curl --request DELETE \
  --url https://your-instance.example.com/api/pipelines/{pipelineId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "targetPipelineId": "66f0a0b0c0d0e0f0a0b0c0d1"
}
'

{
  "message": "Pipeline deleted",
  "pipelineId": "66f0a0b0c0d0e0f0a0b0c0d0",
  "recordsTransferred": 22,
  "movedToPipeline": {
    "id": "66f0a0b0c0d0e0f0a0b0c0d1",
    "name": "EMEA sales pipeline"
  },
  "movedToStage": {
    "id": "67f0a0b0c0d0e0f0a0b0c0e0",
    "name": "New"
  }
}