Payment terms define the payment deadlines available for invoices.
Open Administration → Computation details → Payment terms.
The list Company’s payment terms shows each term’s Name, ID, Payment deadline (days), whether it is the company’s Default term, and whether it is In use. Add a new term with New payment term; the Name is entered separately for each language (FI, EN, SV). Default makes the term the one used by default on agreements; In use controls whether it can be selected on an agreement at all.

Click the Name column link. The payment term can be deleted with Delete payment term or its details edited with Edit; Cancel returns to the company’s payment terms summary view. Note! Deleting a term does not ask for a confirmation.