Payment terms

There are no payment terms defined on /public/settings/payment_terms

On /public/settings/company_details there are a multitude of terms to select: 0, 7, 10, 14, 15, 30, 60 & 90

If I want to delete all but 0 & 15, do I do this in the database table?

It may work but we advise against manually modifying the database