Error: String '' was not recognized as a valid DateTime

Hi @rajababu.mandapati

Can you try this

formattedDate = DateTime.ParseExact(dateString, {"dd/MMM/yyyy", "MM/dd/yyyy", "dd.MM.yyyy"}, 
                                           System.Globalization.CultureInfo.InvariantCulture, 
                                           System.Globalization.DateTimeStyles.None).ToString("dd/MM/yyyy")

Regards,