You should be able to write a formula that says if the date is your target data then make the column the date of now plus 1 day. You should also be able to truncate the resulting date time to the beginning of the day if that is what you need.
Please note unlike MS Excel the Dataiku formula language is case sensitive. So, for example, if you want to do an “if” function. You need to enter it as in the documentation as all lower case “if”. Entering that function as any of these “IF” or “If” or “iF” will cause an error.
Good luck, please let the community know how you are getting on with your puzzle.