Send email notification if issue is created and not transitioned in 2 business days(Weekdays).
Since this is a Jira Software project, I don't have SLA feature out of the box.
Issues created on Monday and no transition made: Send email on Wednesday
Issues created on Tue and no transition made: Send email on Thursday
Issues created on Wed and no transition made: Send email on Friday
Issues created on Thu and no transition made: Send email on Monday
Issues created on Fri and no transition made: Send email on Tuesday
Issues created on Sat and no transition made: Send email on Tuesday
Issues created on Sun and no transition made: Send email on Tuesday