diff --git a/package.json b/package.json
index aa1854e..d840489 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@xtr-dev/payload-billing",
-  "version": "0.1.19",
+  "version": "0.1.20",
   "description": "PayloadCMS plugin for billing and payment provider integrations with tracking and local testing",
   "license": "MIT",
   "type": "module",
diff --git a/src/providers/test.ts b/src/providers/test.ts
index c9d6d0d..1341beb 100644
--- a/src/providers/test.ts
+++ b/src/providers/test.ts
@@ -492,7 +492,10 @@ export const testProvider = (testConfig: TestProviderConfig) => {
 
       // Set provider ID and data
       payment.providerId = testPaymentId
-      const paymentUrl = `${baseUrl}${uiRoute}/${testPaymentId}`
+      // Use custom UI route if specified, otherwise use built-in UI endpoint
+      const paymentUrl = testConfig.customUiRoute
+        ? `${baseUrl}${testConfig.customUiRoute}/${testPaymentId}`
+        : `${baseUrl}/api/payload-billing/test/payment/${testPaymentId}`
       const providerData: ProviderData = {
         raw: {
           id: testPaymentId,