How to add HTML button/div/javascript in RTC pages,then use javascript send info to another webService?

2 answers

Are you asking about adding a button to a Work Item presentation? I'm not sure if that's possible. But if you're looking at updating an external system with data gathered from a work item (or maybe even get the results of a call to another web service and save to the work item?) you can use a custom process participant to do that. There are some good articles on getting started with this on jazz.net, I'd suggest starting with the Extensions Workshop article.
For a more specific answer I think we'd need to know better what you're trying to achieve.

Hi! we have a related article about Javascript on our website. You may want to check this out, it might help.