let
    Func = (SourceText as nullable text) as date =>
        let
            CheckSlashes = Text.Contains(SourceText, "/"),
            TryToConvert = if CheckSlashes then 
                               let
                                   SplitText = Text.Split(SourceText, "/"), 
                                   Parse = try Date.From(#date(Number.From(SplitText{2}), 
                                                               Number.From(SplitText{0}), 
                                                               Number.From(SplitText{1})
                                                        )     )
                                           otherwise null
                               in
                                   Parse
                           else
                               Date.From(SourceText) 
         in
            TryToConvert 
in
    Func