Make field mandatory and display an error message if not filled

[GUSNOW13]

Hi, I have a field called 'Request classification' on the form which should be made Mandatory. It has two options 1)Prod 2) Non prod either one of those has to be selected and by default column will have none option. If form saved without filling either of the two options it should display an error message as 'Mandatory fields are not filled' and also should n't allow the user to save the record without selecting one option. How to achieve this..

[GUSNOW13]

Thanks  but another requirement is ….If form saved without filling either of the two options it should display an error message as 'Mandatory fields are not filled' and also should not allow the user to save the record without selecting one option. How to apply this

[jaheerhattiwale]

@GUSNOW13 If you mark the field as mandatory then servicenow will take care of it. See image below where Caller and 'Short Description' of incident fields are mandatory. I tried to submit them without filling. System shows the error on top and will not allow to save.

[Voona Rohila]

Hi @GUSNOW13 

Can you share screenshot of the choices? Did you add None as choice?

Make sure you are using 'Dropdown with None' for the Request classification' field.

Right click on the field label on the form and click on 'Configure dictionary' and make the field mandatory by checking the mandatory checkbox - This will make the field mandatory and will throw a error message if not filled.

Example  :