diff --git a/workloads/ecommerce/frontend.yaml b/workloads/ecommerce/frontend.yaml
index e7b98e8..05889b2 100644
--- a/workloads/ecommerce/frontend.yaml
+++ b/workloads/ecommerce/frontend.yaml
@@ -24,6 +24,8 @@ spec:
           value: medusa
         - name: MEDUSA_BACKEND_URL
           value: http://medusa-svc:9000
+        - name: MEDUSA_REGION_ID
+          value: reg_01KZT86WPAH7A7ZZRDSX3350V2
         envFrom:
         - secretRef:
             name: commerce-storefront
diff --git a/workloads/ecommerce/lib/headless/providers/medusa.ts b/workloads/ecommerce/lib/headless/providers/medusa.ts
index c0586d8..9ca8839 100644
--- a/workloads/ecommerce/lib/headless/providers/medusa.ts
+++ b/workloads/ecommerce/lib/headless/providers/medusa.ts
@@ -258,6 +258,14 @@ function backendUrl(): string {
   return value.replace(/\/$/, "");
 }
 
+function regionId(): string {
+  const value = process.env.MEDUSA_REGION_ID;
+  if (!value) {
+    throw new Error("MEDUSA_REGION_ID no está configurado.");
+  }
+  return value;
+}
+
 async function medusaFetch<T>(
   path: string,
   searchParams?: URLSearchParams,
@@ -515,7 +523,10 @@ async function fetchProducts(
 ): Promise<Product[]> {
   const params = new URLSearchParams({
     limit: String(limit),
-    currency_code: "cop",
+    // El validador de /store/products no acepta currency_code (400
+    // "Unrecognized fields"); el precio calculado solo se resuelve con
+    // region_id.
+    region_id: regionId(),
     fields:
       "+metadata,+images,+tags,+categories,+collection,+variants.inventory_quantity,+variants.calculated_price,+variants.options",
   });
@@ -543,7 +554,10 @@ export const medusaCatalogProvider: CatalogProvider = {
     const params = new URLSearchParams({
       handle: slug,
       limit: "1",
-      currency_code: "cop",
+      // El validador de /store/products no acepta currency_code (400
+      // "Unrecognized fields"); el precio calculado solo se resuelve con
+      // region_id.
+      region_id: regionId(),
       fields:
         "+metadata,+images,+tags,+categories,+collection,+variants.inventory_quantity,+variants.calculated_price,+variants.options",
     });