Programmatically create auto generated coupon codes in Magento 2.X

Magento provides the Cart Price Rules marketing feature, which allows applying discounts on items/cart, based on various conditions. The discount can be applied automatically as soon as the conditions are met, or when the customer enters a valid coupon code. The coupon codes can be generated per cart price rule via admin panel in Marketing -> Cart Price Rules section. However, sometimes we need to automate this process. Let’s find out how to create a cart price rule and generate coupon codes programmatically in Magento 2.

Let’s find out how to create a cart price rule and generate coupon codes programmatically in Magento 2.

$str_result = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ'; //random string to generate the code
$ranCode = substr(str_shuffle($str_result), 0, 8);
$ranStr = substr(str_shuffle($str_result), 0, 5);
$coupon['name'] = 'TEST-'.$ranStr.''; //Generate a rule name
$coupon['desc'] = 'Discount on First Shopping';
$coupon['start'] = date('Y-m-d'); //Coupon use start date
$coupon['end'] = ''; //coupon use end date
$coupon['max_redemptions'] = 1; //Uses per Customer
$coupon['discount_type'] ='cart_fixed'; //for discount type
$coupon['discount_amount'] = 20; //discount amount/percentage
$coupon['flag_is_free_shipping'] = 'no';
$coupon['redemptions'] = 1;
$coupon['code'] = $ranCode; //generate a random coupon code

$shoppingCartPriceRule = $obj->create('Magento\SalesRule\Model\Rule');
$shoppingCartPriceRule->setName($coupon['name'])
->setDescription($coupon['desc'])
->setFromDate($coupon['start'])
->setToDate($coupon['end'])
->setUsesPerCustomer($coupon['max_redemptions'])
->setCustomerGroupIds(array('1','2','3')) //select customer group
->setIsActive(1)
->setSimpleAction($coupon['discount_type'])
->setDiscountAmount($coupon['discount_amount'])
->setDiscountQty(1)
->setApplyToShipping($coupon['flag_is_free_shipping'])
->setTimesUsed($coupon['redemptions'])
->setWebsiteIds(array('1'))
->setCouponType(2)
->setCouponCode($coupon['code'])
->setUsesPerCoupon(1);
$shoppingCartPriceRule->save();

Now you are able to check the results in the admin panel under Marketing -> Cart Price Rules.

Don’t hesitate to share your ideas in the comments. Thanks for reading!