diff --git a/test-apps/daily-notification-test/android/app/src/main/java/com/timesafari/dailynotification/test/TestNativeFetcher.java b/test-apps/daily-notification-test/android/app/src/main/java/com/timesafari/dailynotification/test/TestNativeFetcher.java
index c9ba55b..8de562b 100644
--- a/test-apps/daily-notification-test/android/app/src/main/java/com/timesafari/dailynotification/test/TestNativeFetcher.java
+++ b/test-apps/daily-notification-test/android/app/src/main/java/com/timesafari/dailynotification/test/TestNativeFetcher.java
@@ -178,7 +178,14 @@ public class TestNativeFetcher implements NativeNotificationContentFetcher {
                 // Build request body
                 Map<String, Object> requestBody = new HashMap<>();
                 requestBody.put("planIds", getStarredPlanIds());
-                requestBody.put("afterId", getLastAcknowledgedJwtId());
+                
+                // afterId is required by the API endpoint
+                // Use "0" for first request (no previous data), or stored jwtId for subsequent requests
+                String afterId = getLastAcknowledgedJwtId();
+                if (afterId == null || afterId.isEmpty()) {
+                    afterId = "0"; // First request - start from beginning
+                }
+                requestBody.put("afterId", afterId);
                 
                 String jsonBody = gson.toJson(requestBody);
                 Log.d(TAG, "TestNativeFetcher: Request body: " + jsonBody);