diff --git a/src/store/index.js b/src/store/index.js
index 84a34782c..732a210cf 100644
--- a/src/store/index.js
+++ b/src/store/index.js
@@ -1480,9 +1480,16 @@ export const actions = {
         const ctuToUse = serviceZipCodeCtu
             ? serviceZipCodeCtu
             : context.getters.order.serviceLocation.zipCodeCtu;
-
+        const flattenedLineItemsWithChildParts =
+            getFlattenedArrayOfLineItemsWithChildParts(availableLineItems);
+        const lineItemsWithOnlyPartNumbers = flattenedLineItemsWithChildParts.map((lineItem) => ({
+            partNumber: lineItem.partNumber,
+        }));
         const availableLineItemsFormattedForRequest =
-            getLineItemQueryStringForPricing(availableLineItems);
+            buildQueryStringParameterFromArrayOfComplexObjects(
+                lineItemsWithOnlyPartNumbers,
+                "lineItems"
+            );
 
         const vehicle = context.getters.order.vehicle;
 
@@ -1495,7 +1502,7 @@ export const actions = {
             `&Year=${vehicle.year}` +
             `&EON=${context.getters.order.eon}` +
             `&ZipCode=${zipCodeToUse}` +
-            `${availableLineItemsFormattedForRequest}`;
+            `&${availableLineItemsFormattedForRequest}`;
 
         const lineItemServerData = context.getters.order.lineItems.serverData;
 
@@ -1677,16 +1684,19 @@ 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) {