Creating a Flag

Hi ocmarketing ,

Please refer to this thread:

let
    IsValidEmail = (input as text) =>
    let
        name = Text.BeforeDelimiter(input,"@",{0,RelativePosition.FromEnd}),
        ext = Text.AfterDelimiter(input,".",{0,RelativePosition.FromEnd}),
        domain = Text.BetweenDelimiters(input,name&"@","."&ext),
        return =
            Text.Length(name) > 0 and
            Text.Length(domain) > 0 and
            Text.Length(ext) > 1 and Text.Length(ext) < 6 and
            name = Text.Select(name, {"a".."z","A".."Z","0".."9","_","-","."}) and
            domain = Text.Select(domain, {"a".."z","A".."Z","0".."9","_","-","."}) and
            ext = Text.Select(ext, {"a".."z","A".."Z"})
    in
        return
in
    IsValidEmail

You can further mark up these values by using conditional formatting colors. If I have misunderstood your question or you need further help please feel free to contact me.

Apply conditional table formatting in Power BI - Power BI | Microsoft Learn

Best Regards,
Gao
Community Support Team

If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly.
If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

How to get your questions answered quickly --  How to provide sample data in the Power BI Forum -- China Power BI User Group