diff --git a/.stats.yml b/.stats.yml
index 58bce287..f6e24a32 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,2 +1,2 @@
 configured_endpoints: 103
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-6797b438a8e6a6856e28f4304a5a3c81bb67e74fa2d6fcc20e734880c725295a.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-04f02fa57c3ab8d15ecf0a16a41a83814c21cdc2a830fae4d65f1b7b2196d819.yml
diff --git a/src/orb/types/subscription_price_intervals_params.py b/src/orb/types/subscription_price_intervals_params.py
index 0ae10958..ce28d218 100644
--- a/src/orb/types/subscription_price_intervals_params.py
+++ b/src/orb/types/subscription_price_intervals_params.py
@@ -2803,14 +2803,18 @@ class AddAdjustment(TypedDict, total=False):
     """The start date of the adjustment interval.
 
     This is the date that the adjustment will start affecting prices on the
-    subscription.
+    subscription. The adjustment will apply to invoice dates that overlap with this
+    `start_date`. This `start_date` is treated as inclusive for in-advance prices,
+    and exclusive for in-arrears prices.
     """
 
     end_date: Annotated[Union[Union[str, datetime], BillingCycleRelativeDate, None], PropertyInfo(format="iso8601")]
     """The end date of the adjustment interval.
 
     This is the date that the adjustment will stop affecting prices on the
-    subscription.
+    subscription. The adjustment will apply to invoice dates that overlap with this
+    `end_date`.This `end_date` is treated as exclusive for in-advance prices, and
+    inclusive for in-arrears prices.
     """
 
 
diff --git a/tests/api_resources/test_customers.py b/tests/api_resources/test_customers.py
index 1e87e427..b5cf7ca7 100644
--- a/tests/api_resources/test_customers.py
+++ b/tests/api_resources/test_customers.py
@@ -43,7 +43,7 @@ def test_method_create_with_all_params(self, client: Orb) -> None:
                 ],
                 "excluded": True,
             },
-            additional_emails=["string"],
+            additional_emails=["dev@stainless.com"],
             auto_collection=True,
             billing_address={
                 "city": "city",
@@ -556,7 +556,7 @@ async def test_method_create_with_all_params(self, async_client: AsyncOrb) -> No
                 ],
                 "excluded": True,
             },
-            additional_emails=["string"],
+            additional_emails=["dev@stainless.com"],
             auto_collection=True,
             billing_address={
                 "city": "city",