diff --git a/src/store/index.js b/src/store/index.js
index cfb5e1dff..ed6021ed5 100644
--- a/src/store/index.js
+++ b/src/store/index.js
@@ -1023,7 +1023,7 @@ export const actions = {
     const partsOrQuestionsDataToCompareWith = context.getters.pageData(fmgPageValues.MOLDING_QUESTIONS)?.partsOrQuestions ?? context.getters.pageData(fmgPageValues.CAPABILITY_QUESTIONS)?.partsOrQuestions ?? [];
     
     function getAllPartNumbers(partsOrQuestions) {
-      return partsOrQuestions[0].parts
+      return partsOrQuestions[0]?.parts
         ? [...partsOrQuestions].map(glass => glass.parts).flat().map(part => part.partNumber).filter(partNumber => !partNumber.toUpperCase().includes("FEE")).sort().join(",")
         : []
     }