# Missing properties in OpenAPI Spec

**URL:** <https://devforum.zoom.us/t/missing-properties-in-openapi-spec/143108>\
**Category:** API and Webhooks\
**Tags:** api\
**Created:** [April 21, 2026, 9:01pm UTC](https://devforum.zoom.us/t/missing-properties-in-openapi-spec/143108 "2026-04-21T21:01:15Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Jared3](https://avatars.discourse-cdn.com/v4/letter/j/0ea827/32.png) [@Jared3](https://devforum.zoom.us/u/Jared3)\
**Post date:** [April 21, 2026, 9:01pm UTC](https://devforum.zoom.us/t/missing-properties-in-openapi-spec/143108/1 "2026-04-21T21:01:15Z")

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The downloadable Open API specification is not representing what actually returns from `/past_instances/{webinarId}/instances`. Docs at \</docs/api/meetings/#tag/webinars/get/past\_webinars/{webinarId}/instances\>

I’m trying to establish a Pact bi-directional contract test against the spec, but this endpoint doesn’t define `occurence_id`, even though it is returned and we require it for recurring webinars.

Can the specification be updated to reflect the accurate, up to date information please? This should be auto-generated and uploaded on every release to reflect the code base.

Example response:

```json
{
    "webinars": [{
            "uuid": "/LyIZcj+Tsufe23r9XUSnA==",
            "occurrence_id": "1776726000000",
            "start_time": "2026-04-20T22:50:30Z"
        }
    ]
}

```

Thanks

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<div class="post-metadata">

**Author:** ![gianni.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/gianni.zoom/32/32523_2.png) [@gianni.zoom](https://devforum.zoom.us/u/gianni.zoom)\
**Post date:** [April 23, 2026, 5:34pm UTC](https://devforum.zoom.us/t/missing-properties-in-openapi-spec/143108/3 "2026-04-23T17:34:36Z")

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Hi @Jared3 , I’ll get this request in for you. I’m going to private message you for your client id and account id so I can tie the request to a specific customer. The message will be in your notifications.

Thank you!

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<div class="post-metadata">

**Author:** ![gianni.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/gianni.zoom/32/32523_2.png) [@gianni.zoom](https://devforum.zoom.us/u/gianni.zoom)\
**Post date:** [April 24, 2026, 6:21pm UTC](https://devforum.zoom.us/t/missing-properties-in-openapi-spec/143108/4 "2026-04-24T18:21:44Z")

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Hi @Jared3 , submitted for a fix (ZSEE-201519). I’ll let you know when it’s updated!

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [April 25, 2026, 6:22pm UTC](https://devforum.zoom.us/t/missing-properties-in-openapi-spec/143108/5 "2026-04-25T18:22:16Z")

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Closed on April 25, 2026, 6:22pm UTC

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