Hi there,
I am trying to make an error message appear on an app. I have a workflow where we have to insert the period of the report, the format will be YYYYMM, i.e. June 2020 = 202006.
I would like to make an expression that says the expression can only be 6 digits long, the first 2 must be "20" and the last two can be from "01" to "12". I have tried a few things but not able to do it so far unfortunately. Any advice?
Thanks a lot