How to make field Primary Contact OR Account as Mandatory in opportunity creation Page

Summary

How to make field Primary Contact OR Account as Mandatory in opportunity creation Page

Content

I tried with below logic but its not working

if (AccountName == null || ContactName == null)
{
throw new oracle.jbo.ValidationException("Please Enter Account or Primary Contact to create Opportunity Record")
return false
}else
{
return true
}

 

2. Groovy

if (PartyUniqueName == null || PrimaryContactPerson == null)
{
throw new oracle.jbo.ValidationException("Please Enter Account or Primary Contact to create Opportunity Record")
return false
}else
{
return true
}