# New occurrence ID field in two Meetings and two Webinars instances APIs

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## Changed

-   New `occurrence_id` response field in these **Webinars** APIs:
    -   `GET /v2/accounts/{accountId}/past_webinars/{webinarId}/instances`
    -   `GET /v2/past_webinars/{webinarId}/instances`
-   New `occurrence_id` response field in these **Meetings** APIs:
    -   `GET /v2/accounts/{accountId}/past_meetings/{meetingId}/instances`
    -   `GET /v2/past_meetings/{meetingId}/instances`