Dates
Dates must be between the years 1970 and 2037, inclusive. This applies both to dates assigned to entities (for example, Tariff Expiration Date) and to dates used as filter criteria on search pages.
Mandatory columns
In lists and editable grids, mandatory columns must always be selected for inclusion. There is no visual indication that a column is mandatory, but an error message is issued if an attempt is made to move the column from the Displayed Columns list to the Available Columns list.