Integration should be set on Help Desk MX side, with the following steps:
- Make sure that Mirasvit Help Desk and Knowledge Base are both enabled.
- Proceed to Customers -> Help Desk MX -> Settings -> Feedback Tab and set the Search Knowledge Base Topics first option to Yes.
- Clean all Magento cache and re-generate static content.
After that, both Help Desk contact forms and a popup will be replaced with a simple search form that will ask for request - and will bring up ticket form only if the proposed Knowledge Base topic proved to be invalid (if they were found anyway).