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+slug: "2026.9.3"
+title: "2026.9.3: ZRC rol contactpersoon validation"
+---
+
+| Component | Summary (english)                                                                                                                        | Relevance for consumers (English)                                                                                                                                                                                            | Relevance for end users (Dutch) | Relevance for system administration (Dutch) |
+| --------- | ---------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------- | ------------------------------------------- |
+| ZRC       | `POST /rollen` (API v1.5) now rejects a `contactpersoonRol` object without `naam` with a `400 Bad Request` instead of an unhandled `500` | A `rol` request whose `contactpersoonRol` omits `naam` or sends it as `null` now returns `400` with an `invalidParams` entry naming `contactpersoonRol.naam`. An empty string is still accepted and returns `201` unchanged. |                                 |                                             |