Behavior to require one of three custom fields not be null

[jonathan.fears]

I have a behavior that checks the value of a custom field and determines if other custom fields should be visible.  There is an initializer that hides them initially.  In addition, it checks that at least one of the three custom fields is not null. 

The code below works in throwing the error, but once the user enters a value for one of those fields, the error does not go away and the issue cannot be updated.  I'm not sure what I'm doing incorrectly.  Any help is appreciated!

def Cust_fieldValue = Cust_fieldID.getValue()
def SIE_fieldValue = SIE_fieldID.getValue()
def CFI_fieldValue = CFI_fieldID.getValue()
def SFDC_fieldValue = SFDC_fieldID.getValue()

if (Cust_fieldValue == "Yes") {
     SIE_fieldID.setHidden(false)
     CFI_fieldID.setHidden(false)
     SFDC_fieldID.setHidden(false)

     if (!SIE_fieldValue && !CFI_fieldValue && !SFDC_fieldValue) {
          Cust_fieldID.setValid(false)
          Cust_fieldID.setError("An SIE, CFI or SFDC is required")
     }
    else {
         Cust_fieldID.setValid(true)
         Cust_fieldID.clearError()
     }
}

[Adrien Low _ServiceRocket_]

Hey @jonathan.fears ,

If the above script is placed only in your Initialiser, the script would only run once upon screen load while in the Create/Edit screen.

Which is why subsequent edits to your other custom fields will not do anything.

You will probably need to configure a script for each custom fields separately so that it could detect whenever changes are made to a custom field.

• https://scriptrunner.adaptavist.com/latest/jira/tutorials/behaviours-tutorial.html#_once_or_often

Regards.