diff --git a/macros/tests/blitz_missing_products.sql b/macros/tests/blitz_missing_products.sql
index 46c33be..d05e6df 100644
--- a/macros/tests/blitz_missing_products.sql
+++ b/macros/tests/blitz_missing_products.sql
@@ -28,7 +28,7 @@ from invalid_product_ids
 
 with recent_records as (
     select distinct(product_id) from  {{model}}
-    where block_timestamp >= SYSDATE() - INTERVAL '7 DAY'
+    where block_timestamp >= SYSDATE() - INTERVAL '7 days'
 ),
 
 invalid_product_ids as (
diff --git a/models/silver/protocols/blitz/silver__blitz_market_stats.yml b/models/silver/protocols/blitz/silver__blitz_market_stats.yml
index 5ef0432..822bb8d 100644
--- a/models/silver/protocols/blitz/silver__blitz_market_stats.yml
+++ b/models/silver/protocols/blitz/silver__blitz_market_stats.yml
@@ -23,7 +23,9 @@ models:
         tests:
           - not_null
       - name: SYMBOL
+          - not_null
       - name: PRODUCT_ID
+          - not_null
       - name: DISTINCT_SEQUENCE
         tests:
           - dbt_expectations.expect_column_values_to_be_in_type_list: