The Workout slug is the user friendly and URL valid name of a post. Most common usage of this feature is to create a permalink for each post. WordPress automatically generates post slugs from a post’s title. However, it is not used in the URL until custom permalinks are enabled for use ” %postname%” in the URL structure. Permalinks can be enabled from Settings » Permalinks. Once this is done the slug will substitute the “%postname%” placeholder in the custom permalink structure
