diff --git a/.changeset/cuddly-baboons-cough.md b/.changeset/cuddly-baboons-cough.md
new file mode 100644
index 0000000000..3614740ebb
--- /dev/null
+++ b/.changeset/cuddly-baboons-cough.md
@@ -0,0 +1,5 @@
+---
+"@medusajs/core-flows": patch
+---
+
+chore(core-flows): throw Medusa error for exceptions in the fulifllment flows
diff --git a/packages/core/core-flows/src/order/workflows/cancel-order-fulfillment.ts b/packages/core/core-flows/src/order/workflows/cancel-order-fulfillment.ts
index 13788819ec..99876dc955 100644
--- a/packages/core/core-flows/src/order/workflows/cancel-order-fulfillment.ts
+++ b/packages/core/core-flows/src/order/workflows/cancel-order-fulfillment.ts
@@ -103,7 +103,8 @@ export const cancelOrderFulfillmentValidateOrder = createStep(
       (f) => f.id === input.fulfillment_id
     )
     if (!fulfillment) {
-      throw new Error(
+      throw new MedusaError(
+        MedusaError.Types.INVALID_DATA,
         `Fulfillment with id ${input.fulfillment_id} not found in the order`
       )
     }
diff --git a/packages/core/core-flows/src/order/workflows/create-fulfillment.ts b/packages/core/core-flows/src/order/workflows/create-fulfillment.ts
index 13c571cb42..86bb1f42b3 100644
--- a/packages/core/core-flows/src/order/workflows/create-fulfillment.ts
+++ b/packages/core/core-flows/src/order/workflows/create-fulfillment.ts
@@ -296,7 +296,8 @@ function prepareInventoryUpdate({
 
     if (!reservations?.length) {
       if (item.variant?.manage_inventory) {
-        throw new Error(
+        throw new MedusaError(
+          MedusaError.Types.INVALID_DATA,
           `No stock reservation found for item ${item.id} - ${item.title} (${item.variant_title})`
         )
       }
diff --git a/packages/core/core-flows/src/order/workflows/mark-order-fulfillment-as-delivered.ts b/packages/core/core-flows/src/order/workflows/mark-order-fulfillment-as-delivered.ts
index c9e085c498..d4d38932e3 100644
--- a/packages/core/core-flows/src/order/workflows/mark-order-fulfillment-as-delivered.ts
+++ b/packages/core/core-flows/src/order/workflows/mark-order-fulfillment-as-delivered.ts
@@ -7,7 +7,12 @@ import {
   ProductVariantDTO,
   RegisterOrderDeliveryDTO,
 } from "@medusajs/framework/types"
-import { FulfillmentWorkflowEvents, MathBN, Modules } from "@medusajs/framework/utils"
+import {
+  FulfillmentWorkflowEvents,
+  MathBN,
+  MedusaError,
+  Modules,
+} from "@medusajs/framework/utils"
 import {
   WorkflowData,
   WorkflowResponse,
@@ -102,7 +107,8 @@ export const orderFulfillmentDeliverablilityValidationStep = createStep(
     )
 
     if (!orderFulfillment) {
-      throw new Error(
+      throw new MedusaError(
+        MedusaError.Types.INVALID_DATA,
         `Fulfillment with id ${fulfillment.id} not found in the order`
       )
     }