I need to correct a multiple choice question in a live form

Multiple choice type of questions (Drop-down, Check boxes, Radio Buttons, and Labels) can not be updated or deleted after a study version is approved. The restriction applies to both typed in values and code lists. However, there is a workaround you can use in case you need to correct an error: You can hide the question containing the error and then create a new one with the correct code list or values.