1. Click Case
2. Click When - you'll then get another pop-up screen to determine:
WHEN
1. Select Field e.g. State
2. Select Operator e.g. =
3. Type in a value for the field e.g. North Territory
4. Select Add
THEN
5. Type in a value for the answer you want displayed when the above is true
6. Select Add
7. Select Save to return to the formula screen
8. Continue adding more When statements as required, e.g. When State = 'Victoria' Then 'VIC'.
ELSE
9. When you've finished adding When statements, you may choose to add an Else statement to cover any other possible outcomes
END
10. Once done, ensure you add an End to close the Case When argument. You'll get an error if you don't.