Is it possible to use a formula in a project sheet's start and/or end date columns? I'm trying to have a date entered into a start date column in the project sheet based on a date entered as text in another text column. I've already found a formula that works to convert date-as-text to a date format, and I've confirmed the formula works when input into a regular date column, but it doesn't work in the start or end date columns in the project sheet.