How to show an alert message on the form if user clicked on a button?

[Devi12]

Hi,

I have requirement to show an alert message on the form, if user clicks on a button. In "sn_vul_vulnerable_item" form I need to make the "Assigned to" field as mandatory when user clicks on a button "Request exception". I made it using onSubmit client script, but it is working only when user clicked on save or update button. I need to make the "Assigned to" as mandatory if user clicks on "Request exception". How can I do that?

Below are the attachments:

Currently I made Assigned to field as mandatory using dictionary override. This is also not working. 

[Devi12 · Accepted solution]

Hi Uday,

Thanks for the reply.

I already have the OOTB UI action named "Request Exception". In that UI action script I have added your script, not working.

[Devi12]

Hi Ankur,

Below is the script line I have added in Request exception UI action:

[Ankur Bawiskar]

@Devi12 

can you update your line number 4 as this

if(assignedTo == '' || assignedTo == null)

[Devi12]

Hi Ankur,

I tried replacing line 4 but not working.

[Ankur Bawiskar]

@Devi12 

did you add alert() and debug?

[Devi12]

No Ankur. This is the script.