Automated determination of applicability and value of discounts for a purchase order

A non-transitory computer-readable storage medium comprising:

• a medium configured to store computer-readable instructions thereon;
• and
• the computer-readable instructions that, when executed by is processing device cause the processing device to perform a method, comprising:
• sending a recursive rules engine to a client device, wherein the rules engine comprises a set of discount rules configured for automatically de fining a purchase order discount from a coupon code when a purchase order is made and when a purchase order is modified, and wherein execution of the rules engine comprises:
• recursively evaluating the first set of rules for determining an applicability of the purchase order discount;
• recursively evaluating a second set of rules for determining a discount value relating to an applicable discount;
• recursively evaluating the first set of rules and the second set of rules by performing an automatic process that recursively calls itself;
• receiving a purchase order placed by a user of the client device along with a coupon code;
• receiving the purchase order discount from the client device for the purchase order as automatically determined by the rules engine upon placement of a purchase order;
• relying on the determination of the rules engine;
• applying the discount without independently determining the purchase order discount;
• and
• processing the purchase order along with purchase order discount.

A system comprising:

• a server;
• a plurality of provider computers operatively coupled with the server and offering products for sale via the server;
• a plurality of client devices operatively coupled with the server,
• wherein the server is configured to:
• send a reclusive rules engine to a client device from the plurality of client devices, wherein the rules engine comprises a set of discount rules configured for automatically determining a purchase order discount from a coupon code when a purchase order is made and when a purchase order is modified, and wherein execution of the rules engine comprises:
• recursively evaluate a first set of rules for determining an applicability of the purchase order discount;
• recursively evaluate second set of rules for determining a discount value relating to an applicable discount;
• recursively evaluate the first set of rules and the second set of rules by performing an automatic process that recursively calls itself;
• receive a purchase order placed by a user of the client device along with a coupon code;
• receive the purchase order discount from the client device for the purchase order as automatically determined by the rules engine upon placement of a purchase order;
• applying the discount for the purchase order without independently determining the discount;
• relying on the determination of the rules engine;
• apply the discount without independently determining the purchase order discount;
• and
• process the purchase order along with the purchase order discount.