Provides context (e.g. frequency of payment (Single, Recurring) along with whether (Customer is Present, Not Present) for the payment being processed. For Card and PayPal Vaulted/Billing Agreement transactions, this helps specify the appropriate indicators to the networks (e.g. Mastercard, Visa) which ensures compliance as well as ensure a better auth-rate. For bank processing, indicates to clearing house whether the transaction is recurring or not depending on the option chosen.