diff --git a/src/store/index.js b/src/store/index.js
index 3c51c202e..73c5e2333 100644
--- a/src/store/index.js
+++ b/src/store/index.js
@@ -1472,8 +1472,9 @@ export const actions = {
         const ctuToUse = serviceZipCodeCtu
             ? serviceZipCodeCtu
             : context.getters.order.serviceLocation.zipCodeCtu;
-
-        const lineItemsWithOnlyPartNumbers = availableLineItems.map((lineItem) => ({
+        const flattenedLineItemsWithChildParts =
+            getFlattenedArrayOfLineItemsWithChildParts(availableLineItems);
+        const lineItemsWithOnlyPartNumbers = flattenedLineItemsWithChildParts.map((lineItem) => ({
             partNumber: lineItem.partNumber,
         }));
         const availableLineItemsFormattedForRequest =
@@ -1675,16 +1676,19 @@ function addPricesToLineItems(lineItems, pricingLineItems) {
     });
     return lineItems;
 }
-function getLineItemQueryStringForPricing(lineItems) {
-    return lineItems
-        .map((lineItem) => {
-            let queryStringSnippet = `&LineItems=${lineItem.partNumber}`;
-            if (lineItem.childParts) {
-                queryStringSnippet += getLineItemQueryStringForPricing(lineItem.childParts);
-            }
-            return queryStringSnippet;
-        })
-        .join("");
+
+function getFlattenedArrayOfLineItemsWithChildParts(lineItems) {
+    let flattenedArray = [];
+    lineItems.forEach((lineItem) => {
+        flattenedArray.push(lineItem);
+        if (lineItem.childParts) {
+            flattenedArray = [
+                ...flattenedArray,
+                ...getFlattenedArrayOfLineItemsWithChildParts(lineItem.childParts),
+            ];
+        }
+    });
+    return flattenedArray;
 }
 
 function buildQueryStringParameterFromArrayOfComplexObjects(arrayOfObjects, parameterName) {