# invalid_terms_version

> The Terms version in the request is not a Terms date.

Source: https://tickwire.io/docs/errors/invalid_terms_version/

HTTP 400.

**Likely cause:** `version` is missing, or is not a date in the form YYYY-MM-DD.

**What to do:** Send the version shown on the Terms page, as YYYY-MM-DD.

**Retry:** No. The same request gets the same answer; change something first.

Listed under [Sign-in and organisations](https://tickwire.io/docs/errors/#sign-in-and-organisations) in [Errors](https://tickwire.io/docs/errors/). Send the error's `requestId` to support and we can find the request.