# SDKERR\_WRONG\_USEAGE when Join multiple meetings **URL:** \ **Category:** Windows\ **Created:** [July 13, 2021, 12:38pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077 "2021-07-13T12:38:18Z")\ **Posts on this page:** 17\ **Page:** 1
**Author:** ![fboncini](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/fboncini/32/40795_2.png) [@fboncini](https://devforum.zoom.us/u/fboncini)\ **Post date:** [July 13, 2021, 12:38pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/1 "2021-07-13T12:38:18Z")
**Description** I want to join multiple meetings with de zoom sdk, **Which Windows Client SDK version?** zoom-c-sharp-wrapper-5.5.12511.0422 **To Reproduce(If applicable)** Steps to reproduce the behavior: 1 join the first meeting without problems 2 join the second meeting 3.get SDKERR\_WRONG\_USEAGE **Additional context** I already activated the option to join multiple meetings in the account settings ---
**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\ **Post date:** [July 13, 2021, 8:07pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/2 "2021-07-13T20:07:37Z")
Hey @fboncini, Thanks for using the dev forum! The SDK does not support joining multiple meetings at once. Thanks! Michael ---
**Author:** ![fboncini](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/fboncini/32/40795_2.png) [@fboncini](https://devforum.zoom.us/u/fboncini)\ **Post date:** [July 13, 2021, 8:38pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/3 "2021-07-13T20:38:37Z")
hi, I want to join diferents user to diferents meetings at the same time with de same api key and secret I mean to connect to both meetings with de same key and secret but with one user for every meeting, the meetings are already created with diferents host is this possible? thanks ---
**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\ **Post date:** [July 14, 2021, 9:28pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/4 "2021-07-14T21:28:09Z")
Hey @fboncini, You key and secret can be re-used to join multiple users into multiple meetings, but you cannot join multiple meetings on the same device at the same time. Thanks! Michael ---
**Author:** ![fboncini](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/fboncini/32/40795_2.png) [@fboncini](https://devforum.zoom.us/u/fboncini)\ **Post date:** [July 19, 2021, 2:34pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/5 "2021-07-19T14:34:05Z")
Thanks for the answer, We have a User Case in which we need to connect (using the same SDK) two different participants in two different meetings at the same time from the same machine. How can we do that? Is it possible or is there a workaround for that scenario? ---
**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\ **Post date:** [July 19, 2021, 4:08pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/6 "2021-07-19T16:08:35Z")
Hey @fboncini, You can do this by running two separate instances of your application at once. You can also try this, but keep in mind this is not a supported feature: [Multiple Windows Instances? - #2 by Michael\_Condon](https://devforum.zoom.us/t/multiple-windows-instances/46256/2) Thanks! Michael ---
**Author:** ![fboncini](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/fboncini/32/40795_2.png) [@fboncini](https://devforum.zoom.us/u/fboncini)\ **Post date:** [July 20, 2021, 8:03pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/7 "2021-07-20T20:03:48Z")
Hi I try to use sdkPathPostfix but when I run other instance of my application i get the error SDKERR\_OTHER\_SDK\_INSTANCE\_RUNNING, (I’m using the c# wrapper and I had to add this property manually) Are you sure that it is possible? ---
**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\ **Post date:** [July 21, 2021, 7:15pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/8 "2021-07-21T19:15:44Z")
Hey @fboncini, I am not sure that this is possible in the C# wrapper. It should be possible in the C++ sdk however. Thanks! Michael ---
**Author:** ![fboncini](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/fboncini/32/40795_2.png) [@fboncini](https://devforum.zoom.us/u/fboncini)\ **Post date:** [July 21, 2021, 7:41pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/9 "2021-07-21T19:41:13Z")
Hi thanks for the answer I try it in c++ but it doesn’t work either. Is the idea to assign a different value to that parameter in each execution? any value? thanks ---
**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\ **Post date:** [July 22, 2021, 7:39pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/10 "2021-07-22T19:39:17Z")
Hey @fboncini, Yes, the idea is that each execution would have a unique value. Because Zoom does not consider this feature supported, I have not actually tested this myself. @liminal_andy were you able to get this working? Thanks! Michael ---
**Author:** ![liminal\_andy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/liminal_andy/32/16222_2.png) [@liminal\_andy](https://devforum.zoom.us/u/liminal_andy)\ **Post date:** [July 22, 2021, 7:51pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/11 "2021-07-22T19:51:40Z")
Yep! I remember needing to do more than we discussed in the thread though. I’ll try to jog my memory when I return to my office. ---
**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\ **Post date:** [July 22, 2021, 8:38pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/12 "2021-07-22T20:38:00Z")
Thanks as usual @liminal_andy 🙂 ---
**Author:** ![liminal\_andy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/liminal_andy/32/16222_2.png) [@liminal\_andy](https://devforum.zoom.us/u/liminal_andy)\ **Post date:** [July 23, 2021, 3:39pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/13 "2021-07-23T15:39:35Z")
Ok @Michael_Condon and @fboncini here’s what we inject into the end of the tagConfigurableOptions struct in zoom\_sdk\_def.h: ```auto string randy = to_string(rand() % 2147483646 + 1); const wchar_t* random = wstring(randy.begin(), randy.end()).c_str(); sdkPathPostfix = random; ``` With the proper #include statements this will allow multiple instances to run on Windows 10. ---
**Author:** ![fboncini](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/fboncini/32/40795_2.png) [@fboncini](https://devforum.zoom.us/u/fboncini)\ **Post date:** [July 26, 2021, 7:28pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/14 "2021-07-26T19:28:19Z")
Thanks @liminal_andy, The solution works perfect ---
**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\ **Post date:** [July 26, 2021, 7:38pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/15 "2021-07-26T19:38:04Z")
Thank you @liminal_andy! You are always a great help to the Zoom community! Michael ---
**Author:** ![liminal\_andy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/liminal_andy/32/16222_2.png) [@liminal\_andy](https://devforum.zoom.us/u/liminal_andy)\ **Post date:** [July 26, 2021, 7:41pm UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/16 "2021-07-26T19:41:44Z")
No problem. Obvious caveat that the code sample I shared is by no means bulletproof, as there is a small possibility that the random string will clash without some sort of instance logging going on, but this generally does the trick. ---
**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:** [August 26, 2021, 5:42am UTC](https://devforum.zoom.us/t/sdkerr-wrong-useage-when-join-multiple-meetings/54077/17 "2021-08-26T05:42:03Z")
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