I have a field called CATEGORY with Single select values like "Alcohol, Snacks etc ". For each of these values I want to maintain a SUB_CATEGORY field for example : For Alcohol, sub categories may be Beer, Gin, Whiskey. For Snacks, Sub categories may be Chips, Pringles.
Now my requirement is: I want to create a formula that reads the CATEGORY and only displays the relevant sub categories for that category in the drop down. WHat is the best practise to achieve this.