diff --git a/src/reducers/sponsors/__tests__/sponsor-customized-form-items-list-reducer.test.js b/src/reducers/sponsors/__tests__/sponsor-customized-form-items-list-reducer.test.js
new file mode 100644
index 000000000..23ac56ae5
--- /dev/null
+++ b/src/reducers/sponsors/__tests__/sponsor-customized-form-items-list-reducer.test.js
@@ -0,0 +1,125 @@
+import sponsorCustomizedFormItemsListReducer from "../sponsor-customized-form-items-list-reducer";
+import {
+  RECEIVE_SPONSOR_CUSTOMIZED_FORM_ITEM,
+  SPONSOR_FORM_MANAGED_ITEM_UPDATED
+} from "../../../actions/sponsor-forms-actions";
+
+const DEFAULT_STATE = {
+  items: [],
+  showArchived: false,
+  term: "",
+  order: "name",
+  orderDir: 1,
+  currentPage: 1,
+  lastPage: 1,
+  perPage: 10,
+  totalCount: 0,
+  currentItem: {
+    code: "",
+    name: "",
+    description: "",
+    early_bird_rate: 0,
+    standard_rate: 0,
+    onsite_rate: 0,
+    quantity_limit_per_show: 0,
+    quantity_limit_per_sponsor: 0,
+    default_quantity: 0,
+    images: [],
+    meta_fields: []
+  }
+};
+
+const buildItem = (overrides = {}) => ({
+  id: 1,
+  code: "ITEM1",
+  name: "Item One",
+  description: "desc",
+  early_bird_rate: 100,
+  standard_rate: 200,
+  onsite_rate: 300,
+  default_quantity: 5,
+  is_archived: false,
+  images: [],
+  meta_fields: [],
+  ...overrides
+});
+
+describe("sponsorCustomizedFormItemsListReducer", () => {
+  describe("RECEIVE_SPONSOR_CUSTOMIZED_FORM_ITEM", () => {
+    it("maps file_url to file_path on each image — the edit-form image fix", () => {
+      const result = sponsorCustomizedFormItemsListReducer(DEFAULT_STATE, {
+        type: RECEIVE_SPONSOR_CUSTOMIZED_FORM_ITEM,
+        payload: {
+          response: buildItem({
+            images: [
+              { id: 10, file_url: "https://cdn/a.png" },
+              { id: 11, file_url: "https://cdn/b.png" }
+            ]
+          })
+        }
+      });
+
+      expect(result.currentItem.images).toEqual([
+        {
+          id: 10,
+          file_url: "https://cdn/a.png",
+          file_path: "https://cdn/a.png"
+        },
+        {
+          id: 11,
+          file_url: "https://cdn/b.png",
+          file_path: "https://cdn/b.png"
+        }
+      ]);
+    });
+
+    it("handles absent images without throwing", () => {
+      const result = sponsorCustomizedFormItemsListReducer(DEFAULT_STATE, {
+        type: RECEIVE_SPONSOR_CUSTOMIZED_FORM_ITEM,
+        payload: { response: buildItem({ images: undefined }) }
+      });
+
+      expect(result.currentItem.images).toEqual([]);
+    });
+
+    it("handles absent meta_fields without throwing — guards the .length access", () => {
+      const result = sponsorCustomizedFormItemsListReducer(DEFAULT_STATE, {
+        type: RECEIVE_SPONSOR_CUSTOMIZED_FORM_ITEM,
+        payload: { response: buildItem({ meta_fields: undefined }) }
+      });
+
+      expect(result.currentItem.meta_fields).toEqual([]);
+    });
+  });
+
+  describe("SPONSOR_FORM_MANAGED_ITEM_UPDATED", () => {
+    it("replaces the matching list item and preserves its images as-is", () => {
+      const images = [{ id: 20, file_url: "https://cdn/img.png" }];
+      const state = {
+        ...DEFAULT_STATE,
+        items: [
+          buildItem({ id: 1, name: "Before", images }),
+          buildItem({ id: 2, name: "Other" })
+        ]
+      };
+
+      const result = sponsorCustomizedFormItemsListReducer(state, {
+        type: SPONSOR_FORM_MANAGED_ITEM_UPDATED,
+        payload: {
+          response: buildItem({
+            id: 1,
+            name: "After",
+            early_bird_rate: 500,
+            standard_rate: 600,
+            onsite_rate: 700,
+            images
+          })
+        }
+      });
+
+      expect(result.items[0].name).toBe("After");
+      expect(result.items[0].images).toBe(images);
+      expect(result.items[1].name).toBe("Other");
+    });
+  });
+});
diff --git a/src/reducers/sponsors/__tests__/sponsor-customized-form-reducer.test.js b/src/reducers/sponsors/__tests__/sponsor-customized-form-reducer.test.js
new file mode 100644
index 000000000..10d4102e1
--- /dev/null
+++ b/src/reducers/sponsors/__tests__/sponsor-customized-form-reducer.test.js
@@ -0,0 +1,105 @@
+import sponsorCustomizedFormReducer from "../sponsor-customized-form-reducer";
+import {
+  RECEIVE_SPONSOR_CUSTOMIZED_FORM,
+  RESET_SPONSOR_CUSTOMIZED_FORM
+} from "../../../actions/sponsor-forms-actions";
+
+const DEFAULT_ENTITY = {
+  id: 0,
+  code: "",
+  name: "",
+  allowed_add_ons: [],
+  opens_at: "",
+  expires_at: "",
+  instructions: "",
+  meta_fields: [],
+  items: []
+};
+
+const DEFAULT_STATE = { entity: DEFAULT_ENTITY };
+
+describe("sponsorCustomizedFormReducer", () => {
+  describe("RECEIVE_SPONSOR_CUSTOMIZED_FORM", () => {
+    it("maps file_url to file_path for images on each item", () => {
+      const result = sponsorCustomizedFormReducer(DEFAULT_STATE, {
+        type: RECEIVE_SPONSOR_CUSTOMIZED_FORM,
+        payload: {
+          response: {
+            id: 1,
+            code: "FORM1",
+            items: [
+              {
+                id: 10,
+                name: "Item A",
+                images: [
+                  { id: 100, file_url: "https://example.com/img1.png" },
+                  { id: 101, file_url: "https://example.com/img2.png" }
+                ]
+              }
+            ]
+          }
+        }
+      });
+
+      expect(result.entity.items[0].images).toEqual([
+        {
+          id: 100,
+          file_url: "https://example.com/img1.png",
+          file_path: "https://example.com/img1.png"
+        },
+        {
+          id: 101,
+          file_url: "https://example.com/img2.png",
+          file_path: "https://example.com/img2.png"
+        }
+      ]);
+    });
+
+    it("handles items with no images", () => {
+      const result = sponsorCustomizedFormReducer(DEFAULT_STATE, {
+        type: RECEIVE_SPONSOR_CUSTOMIZED_FORM,
+        payload: {
+          response: {
+            id: 1,
+            code: "FORM1",
+            items: [{ id: 10, name: "Item A", images: [] }]
+          }
+        }
+      });
+
+      expect(result.entity.items[0].images).toEqual([]);
+    });
+
+    it("handles empty items array", () => {
+      const result = sponsorCustomizedFormReducer(DEFAULT_STATE, {
+        type: RECEIVE_SPONSOR_CUSTOMIZED_FORM,
+        payload: {
+          response: { id: 1, code: "FORM1", items: [] }
+        }
+      });
+
+      expect(result.entity.items).toEqual([]);
+    });
+
+    it("handles missing items field", () => {
+      const result = sponsorCustomizedFormReducer(DEFAULT_STATE, {
+        type: RECEIVE_SPONSOR_CUSTOMIZED_FORM,
+        payload: {
+          response: { id: 1, code: "FORM1" }
+        }
+      });
+
+      expect(result.entity.items).toEqual([]);
+    });
+  });
+
+  describe("RESET_SPONSOR_CUSTOMIZED_FORM", () => {
+    it("resets to default state", () => {
+      const dirty = { entity: { id: 99, items: [{ id: 1 }] } };
+      const result = sponsorCustomizedFormReducer(dirty, {
+        type: RESET_SPONSOR_CUSTOMIZED_FORM
+      });
+      expect(result).toEqual(DEFAULT_STATE);
+    });
+  });
+});
diff --git a/src/reducers/sponsors/sponsor-customized-form-items-list-reducer.js b/src/reducers/sponsors/sponsor-customized-form-items-list-reducer.js
index c181d463a..a2de1b315 100644
--- a/src/reducers/sponsors/sponsor-customized-form-items-list-reducer.js
+++ b/src/reducers/sponsors/sponsor-customized-form-items-list-reducer.js
@@ -110,7 +110,11 @@ const sponsorCustomizedFormItemsListReducer = (
 
       const currentItem = {
         ...item,
-        meta_fields: item.meta_fields.length > 0 ? item.meta_fields : []
+        images: (item.images || []).map((img) => ({
+          ...img,
+          file_path: img.file_url
+        })),
+        meta_fields: (item.meta_fields ?? []).length > 0 ? item.meta_fields : []
       };
       return { ...state, currentItem };
     }
diff --git a/src/reducers/sponsors/sponsor-customized-form-reducer.js b/src/reducers/sponsors/sponsor-customized-form-reducer.js
index 9a2d22a36..9eb224544 100644
--- a/src/reducers/sponsors/sponsor-customized-form-reducer.js
+++ b/src/reducers/sponsors/sponsor-customized-form-reducer.js
@@ -26,7 +26,8 @@ const DEFAULT_ENTITY = {
   opens_at: "",
   expires_at: "",
   instructions: "",
-  meta_fields: []
+  meta_fields: [],
+  items: []
 };
 
 const DEFAULT_STATE = {
@@ -43,10 +44,22 @@ const sponsorCustomizedFormReducer = (state = DEFAULT_STATE, action) => {
       return DEFAULT_STATE;
     }
     case RECEIVE_SPONSOR_CUSTOMIZED_FORM: {
-      return {
-        ...state,
-        entity: payload.response
+      // this actions is dispatched by getSponsorManagedForm and getSponsorCustomizedForm
+      // getSponsorManagedForm expands items.images, getSponsorCustomizedForm not,
+      // so items is absent here for the customized path.
+      // Add expand=items,items.images to that action if item display is ever needed in
+      // the customized-form popup.
+      const entity = {
+        ...payload.response,
+        items: (payload.response.items || []).map((it) => ({
+          ...it,
+          images: (it.images || []).map((img) => ({
+            ...img,
+            file_path: img.file_url
+          }))
+        }))
       };
+      return { ...state, entity };
     }
     default:
       return state;