How Can I Migrate Tags to Zendesk?
Help Desk Migration migrates Tags to Zendesk by default. Please note, Zendesk doesn’t support spaces in Tags, so we use dashes (i.e., tag with space => tag-with-space)
Also note, in case you have added custom picklist fields to your tickets, Zendesk would automatically create a tag based on the selected picklist value. Find more information here.