action billingo_get_id { label: "Convert legacy ID to v3 ID." description: "Retrieves the API v3 ID." provider: billingo method: GET path: "/utils/convert-legacy-id/{id}" encoding: json input: { type: "object" properties: { id: { type: "integer" } } required: ["id"] additionalProperties: false } output: { type: "object" properties: { id: { type: "integer" } legacy_id: { type: "integer" } } } }