# Closed caption sequence number **URL:** \ **Category:** API and Webhooks\ **Created:** [August 13, 2020, 12:42am UTC](https://devforum.zoom.us/t/closed-caption-sequence-number/26994 "2020-08-13T00:42:06Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![richard1](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/richard1/32/5472_2.png) [@richard1](https://devforum.zoom.us/u/richard1)\ **Post date:** [August 13, 2020, 12:42am UTC](https://devforum.zoom.us/t/closed-caption-sequence-number/26994/1 "2020-08-13T00:42:06Z")
Hello I am looking to build a closed caption application, I have got a test working fine with the POST API however one issue I have is that if different users want to caption the same meeting at different times (so one does the first hour, another does the next) then as far as I can see the first user would need to send their final sequence number to the second user, otherwise the second user’s captions wouldn’t be displayed. Is there a way to reset the sequence index? Or alternatively is there any harm with me using the current time (in ms) as the sequence number, as then I know the captions will always be in order even though some sequence numbers will be missed? ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [August 13, 2020, 6:22am UTC](https://devforum.zoom.us/t/closed-caption-sequence-number/26994/2 "2020-08-13T06:22:50Z")
Hey @richard1, Just so we are on the same page, are you referring to this process? > **[Integrating a third-party closed captioning service](https://support.zoom.us/hc/en-us/articles/115002212983-Integrating-a-third-party-closed-captioning-service)** > > Overview > As a meeting host, you can add closed captions to Zoom meetings by providing the third-party closed captioning service with the the caption URL. The caption URL allows the third-party serv... Thanks, Tommy ---
**Author:** ![richard1](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/richard1/32/5472_2.png) [@richard1](https://devforum.zoom.us/u/richard1)\ **Post date:** [August 13, 2020, 11:53am UTC](https://devforum.zoom.us/t/closed-caption-sequence-number/26994/3 "2020-08-13T11:53:44Z")
Hello Yes - this is it, what I am finding at the moment is that if I am sending a caption for the first time, or after a long gap from the previous, and start with a sequence of 0 then all is just about fine, however if the sequemce number misses some steps, or reverts back to an earlier number then things go wrong. Ideally I would have a way of telling zoom to reset the sequence count to zero so that if i need to re-start my application then it can do this. Otherwise I will need to cache the current sequence number but this does leave some room for error. Thanks Richard ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [August 13, 2020, 5:50pm UTC](https://devforum.zoom.us/t/closed-caption-sequence-number/26994/4 "2020-08-13T17:50:28Z")
Hey @richard1, Please reach out to [support.zoom.us](http://support.zoom.us), they will be able to better assist since this endpoint is seperate from the [Zoom Developer Platform](https://marketplace.zoom.us/docs/guides). Thanks, Tommy ---
**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:** [September 13, 2020, 3:50am UTC](https://devforum.zoom.us/t/closed-caption-sequence-number/26994/5 "2020-09-13T03:50:31Z")
Closed on September 13, 2020, 3:50am UTC This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.