Hi All,

I am using a nintex forms with 2 panels .After inserting the values in first panel (in initiation case 2nd panel is hidden) I am triggering a mail to some users for whom second panel is visible(first panel is read only) and they need to select value from dropdown present in 2nd column. I cannot make the dropdown mandatory as the second panel is hidden during initiating a request. As I need to trigger a mail after entering values in 2nd panel I am using "Save and Submit" button.How can I validate if the dropdown has value?