diff --git a/autoload/controls/class.Cron.php b/autoload/controls/class.Cron.php
index 23c368f..d3d9f01 100644
--- a/autoload/controls/class.Cron.php
+++ b/autoload/controls/class.Cron.php
@@ -4381,24 +4381,6 @@ class Cron
       ];
     }
 
-    // Blokada ponownego pobrania w tym samym dniu (chyba ze wymuszone lub konkretny klient)
-    if ( !$is_forced_refresh && $requested_client_id <= 0 )
-    {
-      $last_synced_date = (string) \services\FacebookAdsApi::get_setting( 'cron_facebook_ads_last_active_date' );
-      if ( $last_synced_date === $until )
-      {
-        return [
-          'result' => 'Synchronizacja Facebook Ads juz wykonana dzisiaj (' . $since . ' - ' . $until . ').',
-          'success' => true,
-          'skipped' => true,
-          'days' => $days,
-          'since' => $since,
-          'until' => $until,
-          'last_synced_date' => $last_synced_date
-        ];
-      }
-    }
-
     $clients = \factory\FacebookAds::get_clients_for_sync( $client_id );
     if ( empty( $clients ) )
     {
@@ -4436,6 +4418,41 @@ class Cron
       ];
     }
 
+    // Blokada ponownego pobrania w tym samym dniu (chyba ze wymuszone lub konkretny klient)
+    $is_incremental_sync = false;
+    if ( !$is_forced_refresh && $requested_client_id <= 0 )
+    {
+      $last_synced_date = (string) \services\FacebookAdsApi::get_setting( 'cron_facebook_ads_last_active_date' );
+      if ( $last_synced_date === $until )
+      {
+        // Sprawdz czy pojawili sie nowi klienci nieobecni w ostatniej synchronizacji
+        $last_ids_str = (string) \services\FacebookAdsApi::get_setting( 'cron_facebook_ads_last_synced_client_ids' );
+        $last_ids = array_filter( array_map( 'intval', explode( ',', $last_ids_str ) ) );
+        $current_ids = array_map( function ( $c ) { return (int) ( $c['id'] ?? 0 ); }, $clients );
+        $new_ids = array_values( array_diff( $current_ids, $last_ids ) );
+
+        if ( empty( $new_ids ) )
+        {
+          return [
+            'result' => 'Synchronizacja Facebook Ads juz wykonana dzisiaj (' . $since . ' - ' . $until . ').',
+            'success' => true,
+            'skipped' => true,
+            'days' => $days,
+            'since' => $since,
+            'until' => $until,
+            'last_synced_date' => $last_synced_date
+          ];
+        }
+
+        // Sa nowi klienci - ogranicz synchronizacje tylko do nich
+        $clients = array_values( array_filter( $clients, function ( $c ) use ( $new_ids )
+        {
+          return in_array( (int) ( $c['id'] ?? 0 ), $new_ids );
+        } ) );
+        $is_incremental_sync = true;
+      }
+    }
+
     $api = new \services\FacebookAdsApi( $token, $api_version );
     if ( !$api -> is_configured() )
     {
@@ -4518,6 +4535,19 @@ class Cron
     {
       \services\FacebookAdsApi::set_setting( 'cron_facebook_ads_last_success_at', date( 'Y-m-d H:i:s' ) );
     }
+    if ( $is_incremental_sync )
+    {
+      $prev_ids_str = (string) \services\FacebookAdsApi::get_setting( 'cron_facebook_ads_last_synced_client_ids' );
+      $prev_ids = array_filter( array_map( 'intval', explode( ',', $prev_ids_str ) ) );
+      $synced_ids = array_map( function ( $item ) { return (int) ( $item['client_id'] ?? 0 ); }, $items );
+      $all_ids = array_values( array_unique( array_merge( $prev_ids, $synced_ids ) ) );
+      \services\FacebookAdsApi::set_setting( 'cron_facebook_ads_last_synced_client_ids', implode( ',', $all_ids ) );
+    }
+    else
+    {
+      $synced_ids = array_map( function ( $item ) { return (int) ( $item['client_id'] ?? 0 ); }, $items );
+      \services\FacebookAdsApi::set_setting( 'cron_facebook_ads_last_synced_client_ids', implode( ',', $synced_ids ) );
+    }
     \services\FacebookAdsApi::set_setting( 'cron_facebook_ads_last_active_date', $until );
 
     if ( $forced_client_id > 0 )