diff --git a/java-retail/samples/interactive-tutorials/src/main/java/product/ImportProductsGcs.java b/java-retail/samples/interactive-tutorials/src/main/java/product/ImportProductsGcs.java
index 4501ae840ec4..163224666199 100644
--- a/java-retail/samples/interactive-tutorials/src/main/java/product/ImportProductsGcs.java
+++ b/java-retail/samples/interactive-tutorials/src/main/java/product/ImportProductsGcs.java
@@ -44,6 +44,10 @@ public static void main(String[] args) throws IOException, InterruptedException
     String branchName =
         String.format(
             "projects/%s/locations/global/catalogs/default_catalog/branches/0", projectId);
+    // To check error handling, use an invalid catalog in request
+    // branchName =
+    // String.format("projects/%s/locations/global/catalogs/invalid_catalog/branches/default_branch", projectId);
+
     String gcsBucket = String.format("gs://%s", System.getenv("BUCKET_NAME"));
     String gcsErrorBucket = String.format("%s/errors", gcsBucket);
     String gcsProductsObject = "products.json";