# Unpredictable delay before first CC message is displayed **URL:** \ **Category:** API and Webhooks\ **Created:** [June 17, 2020, 10:04pm UTC](https://devforum.zoom.us/t/unpredictable-delay-before-first-cc-message-is-displayed/21663 "2020-06-17T22:04:51Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![roy.ballantine](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/roy.ballantine/32/10499_2.png) [@roy.ballantine](https://devforum.zoom.us/u/roy.ballantine)\ **Post date:** [June 17, 2020, 10:04pm UTC](https://devforum.zoom.us/t/unpredictable-delay-before-first-cc-message-is-displayed/21663/1 "2020-06-17T22:04:51Z")
I read the page: [https://support.zoom.us/hc/en-us/articles/115002212983-Integrating-a-third-party-closed-captioning-service](https://support.zoom.us/hc/en-us/articles/115002212983-Integrating-a-third-party-closed-captioning-service) **Description** Zoom replies to my initial Closed Caption POST with a timestamp and no error code, **but the message is not displayed in the user interface, nor does it give the “Closed captioning available message”**. Only after an unpredictable delay of between 15 seconds and several minutes does the user interface respond to **subsequent** CC messages. After that messages are displayed without delay. **Error** Initial Closed Captioning messages sent through the API are not responded to in the user interface. Only after an unpredictable delay after the first will a subsequent messages be recognized in the user interface **Which Endpoint/s?** [wmcc.zoom.us/closedcaption](http://wmcc.zoom.us/closedcaption) **How To Reproduce (If applicable)** Steps to reproduce the behavior: 1. Send Closed Caption http message as per the support article, with ‘&seq=_Counter_&lang=en-US’ 2. The POST response is timestamp & no error codes. NOTHING happens in ZOOM user interface 3. Send more Closed Caption http message as per the support article, with '&seq=_Counter+n_&lang=en-US 4. The POST response is timestamp & no error codes. NOTHING happens in ZOOM user interface 5. Wait several seconds to several minutes 6. Send another Closed Caption http message as per the support article, with '&seq=_Counter+n_&lang=en-US 7. The POST response is timestamp & no error codes. **Zoom user interface finally announces CC is available, and CC messages can be read** (not including the first messages). I’d appreciate guidance or a workaround. ---
**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:** [June 19, 2020, 7:13am UTC](https://devforum.zoom.us/t/unpredictable-delay-before-first-cc-message-is-displayed/21663/2 "2020-06-19T07:13:43Z")
Hey @roy.ballantine, Since this is not actually apart of the [Zoom API and marketplace](http://marketplace.zoom.us/), please direct this question to [support.zoom.us](http://support.zoom.us), they will be able to better assist. 🙂 Thanks, Tommy ---
**Author:** ![sean-c](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/sean-c/32/3232_2.png) [@sean-c](https://devforum.zoom.us/u/sean-c)\ **Post date:** [June 24, 2020, 12:25am UTC](https://devforum.zoom.us/t/unpredictable-delay-before-first-cc-message-is-displayed/21663/3 "2020-06-24T00:25:55Z")
@roy.ballantine Hi Roy. I’m experiencing the same exact issue. Have you found the solution yet? Thanks! ---
**Author:** ![roy.ballantine](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/roy.ballantine/32/10499_2.png) [@roy.ballantine](https://devforum.zoom.us/u/roy.ballantine)\ **Post date:** [June 24, 2020, 11:33am UTC](https://devforum.zoom.us/t/unpredictable-delay-before-first-cc-message-is-displayed/21663/4 "2020-06-24T11:33:34Z")
@sean-c Regretfully not. I have emailed [support.zoom.us](http://support.zoom.us), but they have not responded yet. Perhaps you could email them too. Good luck Roy ---
**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:** [June 25, 2020, 7:43pm UTC](https://devforum.zoom.us/t/unpredictable-delay-before-first-cc-message-is-displayed/21663/5 "2020-06-25T19:43:21Z")
Hey @sean-c, Yes, please reach out to [support.zoom.us](http://support.zoom.us). Thanks, Tommy ---
**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:** [June 25, 2020, 7:43pm UTC](https://devforum.zoom.us/t/unpredictable-delay-before-first-cc-message-is-displayed/21663/6 "2020-06-25T19:43:27Z")