I’m noticing some strange behavior when multiple discounts are returned using order_discount api with DiscountApplicationStrategy::MAXIMUM. Curious if anyone else has seen something like this..
I’m porting a standard 3-tier discount from a Ruby script for a client. When the cart total is $100+ in $10 discount, $200+, $20 discount, $300+, $30 discount. About as simple as it gets.
Wrote & deployed the script and testing on the default ‘Test Data’ theme ( Dawn 11.0.0). The environment is a dev store w/extensibility preview build. In checkout, everything works fine, but on the online storefront I’m noticing the discount is sometimes dropped from the section api response when using the component from Dawn
Specifically, whenever I increase the quantity in cart from 1 to 2, the order discount disappears from the cart drawer. However, it appears again when I change the quantity of 1, 3, and 4. if I refresh, the discount is rendered, and if I check /cart.json before refreshing I see the discount as it should be.
It’s just weird, like, no matter what the quantity is in the initial cart state, whenever I change the quantity to 2 the discount is not returned from the section api. It’s happening every single time and only at that specific quantity.
As a test, I changed my function so that only one discount is returned in the output array, and changed the discountApplicationStrategy to “FIRST” for this discount - this resolved the issue and the function works at each quantity. However, when implementing a percentage discount instead of fixed, I noticed the same issue at a different price point.
For reference here is the input and output that gives me this behavior. Issue occurs in preview mode as well as with a deployed version.
INPUT
{
"cart": {
"cost": {
"totalAmount": {
"amount": "1200.0"
},
"subtotalAmount": {
"amount": "1200.0"
},
"totalDutyAmount": null,
"totalTaxAmount": null
}
},
"discountNode": {
"metafield": {
"value": {
"tiers": [
{
"value": "10.00",
"minTotal": "100.00",
"maxTotal": "-1.00",
"message": "$10 off"
},
{
"value": "20.00",
"minTotal": "200.00",
"maxTotal": "-1.00",
"message": "$20 off"
},
{
"value": "30.00",
"minTotal": "300.00",
"maxTotal": "-1.00",
"message": "$30 off"
}
]
}
}
}
}
OUTPUT
{
"discountApplicationStrategy": "MAXIMUM",
"discounts": [
{
"conditions": [
{
"orderMinimumSubtotal": {
"excludedVariantIds": [],
"minimumAmount": "100",
"targetType": "ORDER_SUBTOTAL"
}
}
],
"message": "$10 off",
"targets": [
{
"orderSubtotal": {
"excludedVariantIds": []
}
}
],
"value": {
"fixedAmount": {
"amount": "10"
}
}
},
{
"conditions": [
{
"orderMinimumSubtotal": {
"excludedVariantIds": [],
"minimumAmount": "200",
"targetType": "ORDER_SUBTOTAL"
}
}
],
"message": "$20 off",
"targets": [
{
"orderSubtotal": {
"excludedVariantIds": []
}
}
],
"value": {
"fixedAmount": {
"amount": "20"
}
}
},
{
"conditions": [
{
"orderMinimumSubtotal": {
"excludedVariantIds": [],
"minimumAmount": "300",
"targetType": "ORDER_SUBTOTAL"
}
}
],
"message": "$30 off",
"targets": [
{
"orderSubtotal": {
"excludedVariantIds": []
}
}
],
"value": {
"fixedAmount": {
"amount": "30"
}
}
}
]
}