/v1/create/ciiUN/CEFACT D16B CII XML for ERP and EDI pipelines.
| Name | Type | Required | Description |
|---|---|---|---|
| X-API-Key | string | yes | Your workspace secret. |
| Name | Type | Required | Description |
|---|---|---|---|
| invoice | object | yes | EN 16931 mapped object. |
Errors use application/problem+json with type, title, status, detail, errorCode, and optional invalid-params for Schematron field failures.