Are there other factors that determine when a Form 1099-K is issued besides income amount?

Can you please confirm the income threshold amount in which a Form 1099-K is required to be issued... is it $600 and above?  Also, are there other factors that would require the Form to be issued (ex: doing a certain number of transactions for the year)?  In other words, is it possible to still receive this Form without meeting the income threshold based on other determining factors?  Thank you!