diff --git a/package.json b/package.json
index 4e48860a..622cea7f 100644
--- a/package.json
+++ b/package.json
@@ -47,6 +47,7 @@
     "@google-cloud/bigquery": "^8.3.1",
     "@google-cloud/firestore": "^7.6.0",
     "@opentelemetry/api": "^1.7.0",
+    "@paypal/paypal-js": "10.0.1",
     "@sentry/node": "^9.2.0",
     "@tpluscode/sparql-builder": "^0.3.12",
     "@types/bindings": "^1.3.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 04f9a5b4..8628cbe9 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -69,6 +69,9 @@ importers:
       '@opentelemetry/api':
         specifier: ^1.7.0
         version: 1.9.0
+      '@paypal/paypal-js':
+        specifier: 10.0.1
+        version: 10.0.1
       '@sentry/node':
         specifier: ^9.2.0
         version: 9.47.1
@@ -2093,6 +2096,9 @@ packages:
   '@paulirish/trace_engine@0.0.61':
     resolution: {integrity: sha512-/O08DwmUqIlJjUSPSZbNF8lWnlxaMsIOV6sS+uDKCxBd5i1psAmjEoG3JAqR6+nHD8X+YY474NW7SxUH/K+/kQ==}
 
+  '@paypal/paypal-js@10.0.1':
+    resolution: {integrity: sha512-tVv2p5Wf4YyI3BNa2dx5uRIM0iWi5Ci8dn1yUjwAml7Q+axmyTH5maWkCUBktD6Gmw/AjPBv4lRbkHFZyfH8uQ==}
+
   '@phc/format@1.0.0':
     resolution: {integrity: sha512-m7X9U6BG2+J+R1lSOdCiITLLrxm+cWlNI3HUFA92oLO77ObGNzaKdh8pMLqdZcshtkKuV84olNNXDfMc4FezBQ==}
     engines: {node: '>=10'}
@@ -7805,6 +7811,9 @@ packages:
   promise-polyfill@1.1.6:
     resolution: {integrity: sha512-7rrONfyLkDEc7OJ5QBkqa4KI4EBhCd340xRuIUPGCfu13znS+vx+VDdrT9ODAJHlXm7w4lbxN3DRjyv58EuzDg==}
 
+  promise-polyfill@8.3.0:
+    resolution: {integrity: sha512-H5oELycFml5yto/atYqmjyigJoAo3+OXwolYiH7OfQuYlAqhxNvTfiNMbV9hsC6Yp83yE5r2KTVmtrG6R9i6Pg==}
+
   promise-the-world@1.0.1:
     resolution: {integrity: sha512-eAXctcYU0ksq9YT5LT0N3e8yvdEAp0aYuzIiaJo9CpZwga45i08MW05GMXZIow7N05d1o4EBoR5hjkb7jhzqKg==}
 
@@ -12247,6 +12256,10 @@ snapshots:
       legacy-javascript: 0.0.1
       third-party-web: 0.29.2
 
+  '@paypal/paypal-js@10.0.1':
+    dependencies:
+      promise-polyfill: 8.3.0
+
   '@phc/format@1.0.0': {}
 
   '@pkgjs/parseargs@0.11.0':
@@ -19290,6 +19303,8 @@ snapshots:
 
   promise-polyfill@1.1.6: {}
 
+  promise-polyfill@8.3.0: {}
+
   promise-the-world@1.0.1: {}
 
   promise@7.3.1:
diff --git a/test/integration/paypal-js-sdk-v6.mjs b/test/integration/paypal-js-sdk-v6.mjs
new file mode 100644
index 00000000..9fe48521
--- /dev/null
+++ b/test/integration/paypal-js-sdk-v6.mjs
@@ -0,0 +1,11 @@
+// Regression test for https://github.com/vercel/nft/issues/599
+// @paypal/paypal-js@10.0.1 exposes ./sdk-v6 with only "types" + "import"
+// conditions. Tracing must include dist/v6/esm/paypal-js.js so the named
+// export loadCoreSdkScript resolves at runtime after packaging.
+import { loadCoreSdkScript } from '@paypal/paypal-js/sdk-v6';
+
+if (typeof loadCoreSdkScript !== 'function') {
+  throw new Error(
+    `Expected loadCoreSdkScript to be a function, got ${typeof loadCoreSdkScript}`,
+  );
+}
diff --git a/test/unit.test.js b/test/unit.test.js
index 662ae82b..3781a1c3 100644
--- a/test/unit.test.js
+++ b/test/unit.test.js
@@ -153,7 +153,8 @@ for (const { testName, isRoot } of unitTests) {
         testName === 'module-create-require-named-require' ||
         testName === 'module-create-require-named-import' ||
         testName === 'module-create-require-ignore-other' ||
-        testName === 'module-create-require-destructure'
+        testName === 'module-create-require-destructure' ||
+        testName === 'paypal-js-sdk-v6'
       ) {
         inputFileNames = ['input.mjs'];
       }
diff --git a/test/unit/paypal-js-sdk-v6/input.mjs b/test/unit/paypal-js-sdk-v6/input.mjs
new file mode 100644
index 00000000..5d28d150
--- /dev/null
+++ b/test/unit/paypal-js-sdk-v6/input.mjs
@@ -0,0 +1,3 @@
+import { loadCoreSdkScript } from '@paypal/paypal-js/sdk-v6';
+
+console.log(typeof loadCoreSdkScript);
diff --git a/test/unit/paypal-js-sdk-v6/output.js b/test/unit/paypal-js-sdk-v6/output.js
new file mode 100644
index 00000000..64b6d074
--- /dev/null
+++ b/test/unit/paypal-js-sdk-v6/output.js
@@ -0,0 +1,5 @@
+[
+  "node_modules/@paypal/paypal-js/dist/v6/esm/paypal-js.js",
+  "node_modules/@paypal/paypal-js/package.json",
+  "test/unit/paypal-js-sdk-v6/input.mjs"
+]