diff --git a/definitions/assertions/agent_status_data_freshness.sqlx b/definitions/assertions/agent_status_data_freshness.sqlx
index 2684cea..856dfa3 100644
--- a/definitions/assertions/agent_status_data_freshness.sqlx
+++ b/definitions/assertions/agent_status_data_freshness.sqlx
@@ -6,4 +6,5 @@ select * from(
 select max(timestamp) max_timestamp
 from ${ref("pphe_five9_raw","agent_status_*")}
 where _TABLE_SUFFIX = FORMAT_DATE('%Y%m%d',current_date("Europe/Amsterdam")))
-where TIMESTAMP_DIFF(max_timestamp, TIMESTAMP_SUB(CURRENT_TIMESTAMP(), INTERVAL 1 DAY), hour) < 0
\ No newline at end of file
+where TIMESTAMP_DIFF(max_timestamp, TIMESTAMP_SUB(CURRENT_TIMESTAMP(), INTERVAL 1 DAY), hour) < 0
+or max_timestamp is null
\ No newline at end of file
diff --git a/definitions/assertions/calls_data_freshness.sqlx b/definitions/assertions/calls_data_freshness.sqlx
index c9a9145..c1519dd 100644
--- a/definitions/assertions/calls_data_freshness.sqlx
+++ b/definitions/assertions/calls_data_freshness.sqlx
@@ -6,4 +6,5 @@ select * from(
 select max(timestamp) max_timestamp
 from ${ref("pphe_five9_raw","calls_*")}
 where _TABLE_SUFFIX = FORMAT_DATE('%Y%m%d',current_date("Europe/Amsterdam")))
-where TIMESTAMP_DIFF(max_timestamp, TIMESTAMP_SUB(CURRENT_TIMESTAMP(), INTERVAL 1 DAY), hour) < 0
\ No newline at end of file
+where TIMESTAMP_DIFF(max_timestamp, TIMESTAMP_SUB(CURRENT_TIMESTAMP(), INTERVAL 1 DAY), hour) < 0
+or max_timestamp is null
\ No newline at end of file
diff --git a/definitions/assertions/csc_rev_data_freshness.sqlx b/definitions/assertions/csc_rev_data_freshness.sqlx
index 0359c6e..0b905fa 100644
--- a/definitions/assertions/csc_rev_data_freshness.sqlx
+++ b/definitions/assertions/csc_rev_data_freshness.sqlx
@@ -6,4 +6,5 @@ select * from(
 select max(CHANGE_DATE) MAX_CHANGE_DATE
 from ${ref("pphe_five9_raw","csc_rev_changes_*")}
 where _TABLE_SUFFIX = FORMAT_DATE('%Y%m%d',current_date("Europe/Amsterdam")))
-where TIMESTAMP_DIFF(safe_cast(MAX_CHANGE_DATE as timestamp), TIMESTAMP_SUB(CURRENT_TIMESTAMP(), INTERVAL 1 DAY), hour) < 0
\ No newline at end of file
+where TIMESTAMP_DIFF(safe_cast(MAX_CHANGE_DATE as timestamp), TIMESTAMP_SUB(CURRENT_TIMESTAMP(), INTERVAL 1 DAY), hour) < 0
+or MAX_CHANGE_DATE is null
\ No newline at end of file
diff --git a/definitions/assertions/digital_data_freshness.sqlx b/definitions/assertions/digital_data_freshness.sqlx
index e38b5c5..cc431fb 100644
--- a/definitions/assertions/digital_data_freshness.sqlx
+++ b/definitions/assertions/digital_data_freshness.sqlx
@@ -6,4 +6,5 @@ select * from(
 select max(timestamp) max_timestamp
 from ${ref("pphe_five9_raw","digital_*")}
 where _TABLE_SUFFIX = FORMAT_DATE('%Y%m%d',current_date("Europe/Amsterdam")))
-where TIMESTAMP_DIFF(max_timestamp, TIMESTAMP_SUB(CURRENT_TIMESTAMP(), INTERVAL 1 DAY), hour) < 0
\ No newline at end of file
+where TIMESTAMP_DIFF(max_timestamp, TIMESTAMP_SUB(CURRENT_TIMESTAMP(), INTERVAL 1 DAY), hour) < 0
+or max_timestamp is null
\ No newline at end of file