[
  { "op": "thirdparty", "ref": "tp1",
    "input": { "name": "ACME Conseil", "role": "client", "tva_intra": "FR..." } },

  { "op": "invoice", "ref": "inv1",
    "input": { "socid": "@tp1", "kind": "customer", "validate": true,
               "lines": [ { "desc": "Prestation conseil", "qty": 2, "price_ht": 500, "tva": 20, "type": "service" },
                          { "desc": "Licence annuelle",   "qty": 1, "price_ht": 100, "tva": 20, "type": "product" } ] } },

  { "op": "payment",
    "input": { "invoice_id": "@inv1", "mode": "VIR", "account_id": 1, "comment": "Acompte" } }
]