diff --git a/.stats.yml b/.stats.yml
index 73e6990..ad50dbe 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,2 +1,2 @@
 configured_endpoints: 89
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb-762f50aa6ea13f42e719339aa5cb31233984499720a7be832182357f949927a1.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb-03945a99974ac1e7218fd458dceef31887a249cc048bcbbbe3828c1d893f95ea.yml
diff --git a/src/resources/events/events.ts b/src/resources/events/events.ts
index 77e71b6..c8b86d2 100644
--- a/src/resources/events/events.ts
+++ b/src/resources/events/events.ts
@@ -226,12 +226,10 @@ export class Events extends APIResource {
    * We validate the following:
    *
    * - Exactly one of `customer_id` and `external_customer_id` should be specified.
-   * - If specified, `customer_id` must identify a Customer resource within Orb. We
-   *   do not support sending events for customers that have not been provisioned.
-   *   Similarly, if specified, `external_customer_id` must be an identifier that is
-   *   associated with an Orb Customer resource. Note: During our initial integration
-   *   period, this enforcement will be temporarily turned into a warning to ensure
-   *   smooth customer migration.
+   * - If the `customer_id` is specified, the customer in Orb must exist.
+   * - If the `external_customer_id` is specified, the customer in Orb does not need
+   *   to exist. Events will be attributed to any future customers with the
+   *   `external_customer_id` on subscription creation.
    * - `timestamp` must conform to ISO 8601 and represent a timestamp at most 1 hour
    *   in the future. This timestamp should be sent in UTC timezone (no timezone
    *   offset).
diff --git a/src/resources/subscriptions.ts b/src/resources/subscriptions.ts
index 1d94c32..f20759d 100644
--- a/src/resources/subscriptions.ts
+++ b/src/resources/subscriptions.ts
@@ -2087,7 +2087,7 @@ export interface SubscriptionCreateParams {
 
   net_terms?: number | null;
 
-  per_credit_overage_amount?: string | null;
+  per_credit_overage_amount?: number | null;
 
   /**
    * The plan that the given subscription should be switched to. Note that either
@@ -4827,7 +4827,7 @@ export interface SubscriptionSchedulePlanChangeParams {
    */
   invoicing_threshold?: string | null;
 
-  per_credit_overage_amount?: string | null;
+  per_credit_overage_amount?: number | null;
 
   /**
    * The plan that the given subscription should be switched to. Note that either
diff --git a/tests/api-resources/alerts.test.ts b/tests/api-resources/alerts.test.ts
index 16e2242..6953ee8 100644
--- a/tests/api-resources/alerts.test.ts
+++ b/tests/api-resources/alerts.test.ts
@@ -58,7 +58,7 @@ describe('resource alerts', () => {
           cursor: 'string',
           customer_id: 'string',
           external_customer_id: 'string',
-          limit: 0,
+          limit: 1,
           subscription_id: 'string',
         },
         { path: '/_stainless_unknown_path' },
diff --git a/tests/api-resources/coupons/coupons.test.ts b/tests/api-resources/coupons/coupons.test.ts
index 53fa3c3..c4f59b4 100644
--- a/tests/api-resources/coupons/coupons.test.ts
+++ b/tests/api-resources/coupons/coupons.test.ts
@@ -28,7 +28,7 @@ describe('resource coupons', () => {
       discount: { discount_type: 'percentage', percentage_discount: 0 },
       redemption_code: 'HALFOFF',
       duration_in_months: 12,
-      max_redemptions: 0,
+      max_redemptions: 1,
     });
   });
 
@@ -52,7 +52,7 @@ describe('resource coupons', () => {
     // ensure the request options are being passed correctly by passing an invalid HTTP method in order to cause an error
     await expect(
       orb.coupons.list(
-        { cursor: 'string', limit: 0, redemption_code: 'string', show_archived: true },
+        { cursor: 'string', limit: 1, redemption_code: 'string', show_archived: true },
         { path: '/_stainless_unknown_path' },
       ),
     ).rejects.toThrow(Orb.NotFoundError);
diff --git a/tests/api-resources/coupons/subscriptions.test.ts b/tests/api-resources/coupons/subscriptions.test.ts
index fb72c2f..772d152 100644
--- a/tests/api-resources/coupons/subscriptions.test.ts
+++ b/tests/api-resources/coupons/subscriptions.test.ts
@@ -32,7 +32,7 @@ describe('resource subscriptions', () => {
     await expect(
       orb.coupons.subscriptions.list(
         'string',
-        { cursor: 'string', limit: 0 },
+        { cursor: 'string', limit: 1 },
         { path: '/_stainless_unknown_path' },
       ),
     ).rejects.toThrow(Orb.NotFoundError);
diff --git a/tests/api-resources/credit-notes.test.ts b/tests/api-resources/credit-notes.test.ts
index 15e26bb..ff8779f 100644
--- a/tests/api-resources/credit-notes.test.ts
+++ b/tests/api-resources/credit-notes.test.ts
@@ -30,7 +30,7 @@ describe('resource creditNotes', () => {
   test('list: request options and params are passed correctly', async () => {
     // ensure the request options are being passed correctly by passing an invalid HTTP method in order to cause an error
     await expect(
-      orb.creditNotes.list({ cursor: 'string', limit: 0 }, { path: '/_stainless_unknown_path' }),
+      orb.creditNotes.list({ cursor: 'string', limit: 1 }, { path: '/_stainless_unknown_path' }),
     ).rejects.toThrow(Orb.NotFoundError);
   });
 
diff --git a/tests/api-resources/customers/balance-transactions.test.ts b/tests/api-resources/customers/balance-transactions.test.ts
index 2f3b86c..dd5547d 100644
--- a/tests/api-resources/customers/balance-transactions.test.ts
+++ b/tests/api-resources/customers/balance-transactions.test.ts
@@ -56,7 +56,7 @@ describe('resource balanceTransactions', () => {
         'string',
         {
           cursor: 'string',
-          limit: 0,
+          limit: 1,
           'operation_time[gt]': '2019-12-27T18:11:19.117Z',
           'operation_time[gte]': '2019-12-27T18:11:19.117Z',
           'operation_time[lt]': '2019-12-27T18:11:19.117Z',
diff --git a/tests/api-resources/customers/credits/credits.test.ts b/tests/api-resources/customers/credits/credits.test.ts
index 3cb81b8..c3c33a7 100644
--- a/tests/api-resources/customers/credits/credits.test.ts
+++ b/tests/api-resources/customers/credits/credits.test.ts
@@ -32,7 +32,7 @@ describe('resource credits', () => {
     await expect(
       orb.customers.credits.list(
         'string',
-        { currency: 'string', cursor: 'string', limit: 0 },
+        { currency: 'string', cursor: 'string', limit: 1 },
         { path: '/_stainless_unknown_path' },
       ),
     ).rejects.toThrow(Orb.NotFoundError);
@@ -61,7 +61,7 @@ describe('resource credits', () => {
     await expect(
       orb.customers.credits.listByExternalId(
         'string',
-        { currency: 'string', cursor: 'string', limit: 0 },
+        { currency: 'string', cursor: 'string', limit: 1 },
         { path: '/_stainless_unknown_path' },
       ),
     ).rejects.toThrow(Orb.NotFoundError);
diff --git a/tests/api-resources/customers/credits/ledger.test.ts b/tests/api-resources/customers/credits/ledger.test.ts
index 10d57a3..fd6d287 100644
--- a/tests/api-resources/customers/credits/ledger.test.ts
+++ b/tests/api-resources/customers/credits/ledger.test.ts
@@ -41,7 +41,7 @@ describe('resource ledger', () => {
           cursor: 'string',
           entry_status: 'committed',
           entry_type: 'increment',
-          limit: 0,
+          limit: 1,
           minimum_amount: 'string',
         },
         { path: '/_stainless_unknown_path' },
@@ -147,7 +147,7 @@ describe('resource ledger', () => {
           cursor: 'string',
           entry_status: 'committed',
           entry_type: 'increment',
-          limit: 0,
+          limit: 1,
           minimum_amount: 'string',
         },
         { path: '/_stainless_unknown_path' },
diff --git a/tests/api-resources/customers/credits/top-ups.test.ts b/tests/api-resources/customers/credits/top-ups.test.ts
index d30096e..a23255c 100644
--- a/tests/api-resources/customers/credits/top-ups.test.ts
+++ b/tests/api-resources/customers/credits/top-ups.test.ts
@@ -66,7 +66,7 @@ describe('resource topUps', () => {
     await expect(
       orb.customers.credits.topUps.list(
         'string',
-        { cursor: 'string', limit: 0 },
+        { cursor: 'string', limit: 1 },
         { path: '/_stainless_unknown_path' },
       ),
     ).rejects.toThrow(Orb.NotFoundError);
@@ -167,7 +167,7 @@ describe('resource topUps', () => {
     await expect(
       orb.customers.credits.topUps.listByExternalId(
         'string',
-        { cursor: 'string', limit: 0 },
+        { cursor: 'string', limit: 1 },
         { path: '/_stainless_unknown_path' },
       ),
     ).rejects.toThrow(Orb.NotFoundError);
diff --git a/tests/api-resources/customers/customers.test.ts b/tests/api-resources/customers/customers.test.ts
index e54bb56..d8c3662 100644
--- a/tests/api-resources/customers/customers.test.ts
+++ b/tests/api-resources/customers/customers.test.ts
@@ -154,7 +154,7 @@ describe('resource customers', () => {
           'created_at[lt]': '2019-12-27T18:11:19.117Z',
           'created_at[lte]': '2019-12-27T18:11:19.117Z',
           cursor: 'string',
-          limit: 0,
+          limit: 1,
         },
         { path: '/_stainless_unknown_path' },
       ),
diff --git a/tests/api-resources/events/backfills.test.ts b/tests/api-resources/events/backfills.test.ts
index 17f83f5..0af37eb 100644
--- a/tests/api-resources/events/backfills.test.ts
+++ b/tests/api-resources/events/backfills.test.ts
@@ -55,7 +55,7 @@ describe('resource backfills', () => {
   test('list: request options and params are passed correctly', async () => {
     // ensure the request options are being passed correctly by passing an invalid HTTP method in order to cause an error
     await expect(
-      orb.events.backfills.list({ cursor: 'string', limit: 0 }, { path: '/_stainless_unknown_path' }),
+      orb.events.backfills.list({ cursor: 'string', limit: 1 }, { path: '/_stainless_unknown_path' }),
     ).rejects.toThrow(Orb.NotFoundError);
   });
 
diff --git a/tests/api-resources/invoices.test.ts b/tests/api-resources/invoices.test.ts
index bd02a9e..0cc89eb 100644
--- a/tests/api-resources/invoices.test.ts
+++ b/tests/api-resources/invoices.test.ts
@@ -132,7 +132,7 @@ describe('resource invoices', () => {
           'invoice_date[lt]': '2019-12-27T18:11:19.117Z',
           'invoice_date[lte]': '2019-12-27T18:11:19.117Z',
           is_recurring: true,
-          limit: 0,
+          limit: 1,
           status: ['draft', 'issued', 'paid'],
           subscription_id: 'string',
         },
diff --git a/tests/api-resources/items.test.ts b/tests/api-resources/items.test.ts
index 43b0302..879e374 100644
--- a/tests/api-resources/items.test.ts
+++ b/tests/api-resources/items.test.ts
@@ -43,7 +43,7 @@ describe('resource items', () => {
   test('list: request options and params are passed correctly', async () => {
     // ensure the request options are being passed correctly by passing an invalid HTTP method in order to cause an error
     await expect(
-      orb.items.list({ cursor: 'string', limit: 0 }, { path: '/_stainless_unknown_path' }),
+      orb.items.list({ cursor: 'string', limit: 1 }, { path: '/_stainless_unknown_path' }),
     ).rejects.toThrow(Orb.NotFoundError);
   });
 
diff --git a/tests/api-resources/metrics.test.ts b/tests/api-resources/metrics.test.ts
index 1031a16..c0f4e38 100644
--- a/tests/api-resources/metrics.test.ts
+++ b/tests/api-resources/metrics.test.ts
@@ -61,7 +61,7 @@ describe('resource metrics', () => {
           'created_at[lt]': '2019-12-27T18:11:19.117Z',
           'created_at[lte]': '2019-12-27T18:11:19.117Z',
           cursor: 'string',
-          limit: 0,
+          limit: 1,
         },
         { path: '/_stainless_unknown_path' },
       ),
diff --git a/tests/api-resources/plans/plans.test.ts b/tests/api-resources/plans/plans.test.ts
index 8e148d3..a50d24a 100644
--- a/tests/api-resources/plans/plans.test.ts
+++ b/tests/api-resources/plans/plans.test.ts
@@ -114,7 +114,7 @@ describe('resource plans', () => {
           'created_at[lt]': '2019-12-27T18:11:19.117Z',
           'created_at[lte]': '2019-12-27T18:11:19.117Z',
           cursor: 'string',
-          limit: 0,
+          limit: 1,
           status: 'active',
         },
         { path: '/_stainless_unknown_path' },
diff --git a/tests/api-resources/prices/prices.test.ts b/tests/api-resources/prices/prices.test.ts
index 5971a91..9fc0a4b 100644
--- a/tests/api-resources/prices/prices.test.ts
+++ b/tests/api-resources/prices/prices.test.ts
@@ -63,7 +63,7 @@ describe('resource prices', () => {
   test('list: request options and params are passed correctly', async () => {
     // ensure the request options are being passed correctly by passing an invalid HTTP method in order to cause an error
     await expect(
-      orb.prices.list({ cursor: 'string', limit: 0 }, { path: '/_stainless_unknown_path' }),
+      orb.prices.list({ cursor: 'string', limit: 1 }, { path: '/_stainless_unknown_path' }),
     ).rejects.toThrow(Orb.NotFoundError);
   });
 
diff --git a/tests/api-resources/subscriptions.test.ts b/tests/api-resources/subscriptions.test.ts
index 233466c..551606d 100644
--- a/tests/api-resources/subscriptions.test.ts
+++ b/tests/api-resources/subscriptions.test.ts
@@ -48,7 +48,7 @@ describe('resource subscriptions', () => {
           invoicing_threshold: 'string',
           metadata: { foo: 'string' },
           net_terms: 0,
-          per_credit_overage_amount: 'string',
+          per_credit_overage_amount: 0,
           plan_id: 'ZMwNQefe7J3ecf7W',
           price_overrides: [
             {
@@ -178,7 +178,7 @@ describe('resource subscriptions', () => {
           cursor: 'string',
           customer_id: 'string',
           external_customer_id: 'string',
-          limit: 0,
+          limit: 1,
           status: 'active',
         },
         { path: '/_stainless_unknown_path' },
@@ -280,7 +280,7 @@ describe('resource subscriptions', () => {
         'string',
         {
           cursor: 'string',
-          limit: 0,
+          limit: 1,
           'start_date[gt]': '2019-12-27T18:11:19.117Z',
           'start_date[gte]': '2019-12-27T18:11:19.117Z',
           'start_date[lt]': '2019-12-27T18:11:19.117Z',
@@ -526,7 +526,7 @@ describe('resource subscriptions', () => {
       external_plan_id: 'ZMwNQefe7J3ecf7W',
       initial_phase_order: 2,
       invoicing_threshold: '10.00',
-      per_credit_overage_amount: 'string',
+      per_credit_overage_amount: 0,
       plan_id: 'ZMwNQefe7J3ecf7W',
       price_overrides: [
         {