# ZOOM API for delta changes is required **URL:** \ **Category:** API and Webhooks\ **Created:** [May 1, 2020, 5:20pm UTC](https://devforum.zoom.us/t/zoom-api-for-delta-changes-is-required/15748 "2020-05-01T17:20:16Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![cdp](https://avatars.discourse-cdn.com/v4/letter/c/da6949/32.png) [@cdp](https://devforum.zoom.us/u/cdp)\ **Post date:** [May 1, 2020, 5:20pm UTC](https://devforum.zoom.us/t/zoom-api-for-delta-changes-is-required/15748/1 "2020-05-01T17:20:16Z")
I have read zoom data using API. Starts are: users: 60k, meetings: 50k I don’t like to read 60k users daily even though there are no changes for them. I would prefer to read only hosts users and their modified meetings on each day. Is there a way to this using ZOOM API? ---
**Author:** ![michael.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael.zoom/32/37213_2.png) [@michael.zoom](https://devforum.zoom.us/u/michael.zoom)\ **Post date:** [May 5, 2020, 10:56pm UTC](https://devforum.zoom.us/t/zoom-api-for-delta-changes-is-required/15748/2 "2020-05-05T22:56:02Z")
Hi @cdp, I highly suggest you take advantage of our [Webhook Event Subscriptions](https://marketplace.zoom.us/docs/api-reference/webhook-reference), including [Meeting Updated](https://marketplace.zoom.us/docs/api-reference/webhook-reference/meeting-events/meeting-updated) and [User Updated](https://marketplace.zoom.us/docs/api-reference/webhook-reference/user-events/user-updated) so you can receive notifications on the data which has changed, rather than having to query and compare deltas. ---
**Author:** ![DeveloperBot](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/developerbot/32/12632_2.png) [@DeveloperBot](https://devforum.zoom.us/u/DeveloperBot)\ **Post date:** [August 21, 2020, 9:04pm UTC](https://devforum.zoom.us/t/zoom-api-for-delta-changes-is-required/15748/3 "2020-08-21T21:04:03Z")
Closed on August 21, 2020, 9:04pm UTC