diff --git a/src/helpers/promotions-helper.js b/src/helpers/promotions-helper.js
index ecdb433ff..db6bfa01d 100644
--- a/src/helpers/promotions-helper.js
+++ b/src/helpers/promotions-helper.js
@@ -149,9 +149,10 @@ export async function revalidatePromosAndValidateQueryStringPromo(
         } else if (!excludeFromInactivePromoErrorCodes.includes(validatePromoResponse.errorCode)) {
             // Save any valid query string promoCode (not applied) to inactivePromos
             //  in order to not lose the query string promoCode if back button is pressed
-            const activePromoCodes = store.getters.order.lineItems.promos.map((promoObject) => {
-                return promoObject.promoCode.toUpperCase();
-            });
+            const activePromoCodes =
+                store.getters.order.lineItems.promos?.map((promoObject) => {
+                    return promoObject.promoCode.toUpperCase();
+                }) ?? [];
             const isErrorPromoAlreadyOnOrder = activePromoCodes.includes(
                 validatePromoResponse.promoCode.toUpperCase()
             );