I have deleted certain request types but when i go to helpcenter and search those request types are coming up.
How do I stop this.
You are searching via the search bar at the start page?
Then the Helpcenter searches in every project viewable for the user. So if your user has access to other projects, you will see all matching request types out of all projects.
Behind the shown request type the name of the project, from which the helpcenter gets it, should be displayed.
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