Hi @Yannie @Tiffany_SU - please be aware that the “Folder Exists” and “Create Folder” activities are only used with the file system and are not working in the Outlook context.
At the moment there is only an activity directly availalbe for Office365 - https://docs.uipath.com/integrations/docs/office365-create-folder
or a component on GO! → Create Outlook Folder - RPA Component | UiPath Marketplace
@studioX → Is this functionality planned or already in StudioX and I’m missing it?