diff --git a/_build/api.yaml b/_build/api.yaml
index 4489868..2e15792 100644
--- a/_build/api.yaml
+++ b/_build/api.yaml
@@ -2257,6 +2257,17 @@ paths:
         schema:
           type: string
         style: simple
+      - description: Unique key to make the request idempotent. Retrying a request
+          with the same key returns the original response instead of performing the
+          operation again.
+        example: a1b2c3d4-e5f6-7890-abcd-ef1234567890
+        explode: false
+        in: header
+        name: Idempotency-Key
+        required: false
+        schema:
+          type: string
+        style: simple
       requestBody:
         content:
           application/json:
@@ -2398,6 +2409,17 @@ paths:
         schema:
           type: string
         style: simple
+      - description: Unique key to make the request idempotent. Retrying a request
+          with the same key returns the original response instead of performing the
+          operation again.
+        example: a1b2c3d4-e5f6-7890-abcd-ef1234567890
+        explode: false
+        in: header
+        name: Idempotency-Key
+        required: false
+        schema:
+          type: string
+        style: simple
       requestBody:
         content:
           application/json:
@@ -5903,6 +5925,17 @@ paths:
         schema:
           type: string
         style: simple
+      - description: Unique key to make the request idempotent. Retrying a request
+          with the same key returns the original response instead of performing the
+          operation again.
+        example: a1b2c3d4-e5f6-7890-abcd-ef1234567890
+        explode: false
+        in: header
+        name: Idempotency-Key
+        required: false
+        schema:
+          type: string
+        style: simple
       requestBody:
         content:
           application/json:
@@ -8458,6 +8491,17 @@ paths:
         schema:
           type: string
         style: simple
+      - description: Unique key to make the request idempotent. Retrying a request
+          with the same key returns the original response instead of performing the
+          operation again.
+        example: a1b2c3d4-e5f6-7890-abcd-ef1234567890
+        explode: false
+        in: header
+        name: Idempotency-Key
+        required: false
+        schema:
+          type: string
+        style: simple
       requestBody:
         content:
           application/json:
diff --git a/parameters/commons/headers/idempotency_key.yml b/parameters/commons/headers/idempotency_key.yml
new file mode 100644
index 0000000..b6a1c11
--- /dev/null
+++ b/parameters/commons/headers/idempotency_key.yml
@@ -0,0 +1,7 @@
+in: header
+name: "Idempotency-Key"
+description: Unique key to make the request idempotent. Retrying a request with the same key returns the original response instead of performing the operation again.
+required: false
+schema:
+  type: string
+example: "a1b2c3d4-e5f6-7890-abcd-ef1234567890"
diff --git a/resources/checkouts/checkouts.yml b/resources/checkouts/checkouts.yml
index 9cfe1e0..c1fac1f 100644
--- a/resources/checkouts/checkouts.yml
+++ b/resources/checkouts/checkouts.yml
@@ -115,3 +115,4 @@ post:
   parameters:
     - $ref: '../../parameters/commons/headers/accept_language.yml'
     - $ref: '../../parameters/commons/headers/x_child_company_id.yml'
+    - $ref: '../../parameters/commons/headers/idempotency_key.yml'
diff --git a/resources/orders/order.yml b/resources/orders/order.yml
index bbde256..d317def 100644
--- a/resources/orders/order.yml
+++ b/resources/orders/order.yml
@@ -39,6 +39,7 @@ post:
   parameters:
     - $ref: '../../parameters/commons/headers/accept_language.yml'
     - $ref: '../../parameters/commons/headers/x_child_company_id.yml'
+    - $ref: '../../parameters/commons/headers/idempotency_key.yml'
 get:
   tags:
     - Orders
diff --git a/resources/orders/order_charge_param.yml b/resources/orders/order_charge_param.yml
index 89077db..fc294ec 100644
--- a/resources/orders/order_charge_param.yml
+++ b/resources/orders/order_charge_param.yml
@@ -27,3 +27,4 @@ post:
     - $ref: '../../parameters/commons/path_param/id.yml'
     - $ref: '../../parameters/commons/headers/accept_language.yml'
     - $ref: '../../parameters/commons/headers/x_child_company_id.yml'
+    - $ref: '../../parameters/commons/headers/idempotency_key.yml'
diff --git a/resources/orders/order_charges_param.yml b/resources/orders/order_charges_param.yml
index 796e9e3..ca38929 100644
--- a/resources/orders/order_charges_param.yml
+++ b/resources/orders/order_charges_param.yml
@@ -27,3 +27,4 @@ post:
     - $ref: '../../parameters/commons/path_param/id.yml'
     - $ref: '../../parameters/commons/headers/accept_language.yml'
     - $ref: '../../parameters/commons/headers/x_child_company_id.yml'
+    - $ref: '../../parameters/commons/headers/idempotency_key.yml'