diff --git a/frontends/php/include/classes/api/services/CEvent.php b/frontends/php/include/classes/api/services/CEvent.php
index bce56a474b..779f539a41 100644
--- a/frontends/php/include/classes/api/services/CEvent.php
+++ b/frontends/php/include/classes/api/services/CEvent.php
@@ -333,27 +333,29 @@ class CEvent extends CApiService {
 			}
 		}
 
+		$sub_sql_parts = [];
+
 		// groupids
 		if ($options['groupids'] !== null) {
 			zbx_value2array($options['groupids']);
 
 			// triggers
 			if ($options['object'] == EVENT_OBJECT_TRIGGER) {
-				$sqlParts['from']['f'] = 'functions f';
-				$sqlParts['from']['i'] = 'items i';
-				$sqlParts['from']['hg'] = 'hosts_groups hg';
-				$sqlParts['where']['e-f'] = 'e.objectid=f.triggerid';
-				$sqlParts['where']['f-i'] = 'f.itemid=i.itemid';
-				$sqlParts['where']['i-hg'] = 'i.hostid=hg.hostid';
-				$sqlParts['where']['hg'] = dbConditionInt('hg.groupid', $options['groupids']);
+				$sub_sql_parts['from']['f'] = 'functions f';
+				$sub_sql_parts['from']['i'] = 'items i';
+				$sub_sql_parts['from']['hg'] = 'hosts_groups hg';
+				$sub_sql_parts['where']['e-f'] = 'e.objectid=f.triggerid';
+				$sub_sql_parts['where']['f-i'] = 'f.itemid=i.itemid';
+				$sub_sql_parts['where']['i-hg'] = 'i.hostid=hg.hostid';
+				$sub_sql_parts['where']['hg'] = dbConditionInt('hg.groupid', $options['groupids']);
 			}
 			// lld rules and items
 			elseif ($options['object'] == EVENT_OBJECT_LLDRULE || $options['object'] == EVENT_OBJECT_ITEM) {
-				$sqlParts['from']['i'] = 'items i';
-				$sqlParts['from']['hg'] = 'hosts_groups hg';
-				$sqlParts['where']['e-i'] = 'e.objectid=i.itemid';
-				$sqlParts['where']['i-hg'] = 'i.hostid=hg.hostid';
-				$sqlParts['where']['hg'] = dbConditionInt('hg.groupid', $options['groupids']);
+				$sub_sql_parts['from']['i'] = 'items i';
+				$sub_sql_parts['from']['hg'] = 'hosts_groups hg';
+				$sub_sql_parts['where']['e-i'] = 'e.objectid=i.itemid';
+				$sub_sql_parts['where']['i-hg'] = 'i.hostid=hg.hostid';
+				$sub_sql_parts['where']['hg'] = dbConditionInt('hg.groupid', $options['groupids']);
 			}
 		}
 
@@ -363,17 +365,17 @@ class CEvent extends CApiService {
 
 			// triggers
 			if ($options['object'] == EVENT_OBJECT_TRIGGER) {
-				$sqlParts['from']['f'] = 'functions f';
-				$sqlParts['from']['i'] = 'items i';
-				$sqlParts['where']['e-f'] = 'e.objectid=f.triggerid';
-				$sqlParts['where']['f-i'] = 'f.itemid=i.itemid';
-				$sqlParts['where']['i'] = dbConditionInt('i.hostid', $options['hostids']);
+				$sub_sql_parts['from']['f'] = 'functions f';
+				$sub_sql_parts['from']['i'] = 'items i';
+				$sub_sql_parts['where']['e-f'] = 'e.objectid=f.triggerid';
+				$sub_sql_parts['where']['f-i'] = 'f.itemid=i.itemid';
+				$sub_sql_parts['where']['i'] = dbConditionInt('i.hostid', $options['hostids']);
 			}
 			// lld rules and items
 			elseif ($options['object'] == EVENT_OBJECT_LLDRULE || $options['object'] == EVENT_OBJECT_ITEM) {
-				$sqlParts['from']['i'] = 'items i';
-				$sqlParts['where']['e-i'] = 'e.objectid=i.itemid';
-				$sqlParts['where']['i'] = dbConditionInt('i.hostid', $options['hostids']);
+				$sub_sql_parts['from']['i'] = 'items i';
+				$sub_sql_parts['where']['e-i'] = 'e.objectid=i.itemid';
+				$sub_sql_parts['where']['i'] = dbConditionInt('i.hostid', $options['hostids']);
 			}
 		}
 
@@ -383,21 +385,29 @@ class CEvent extends CApiService {
 
 			// triggers
 			if ($options['object'] == EVENT_OBJECT_TRIGGER) {
-				$sqlParts['from']['f'] = 'functions f';
-				$sqlParts['from']['ia'] = 'items_applications ia';
-				$sqlParts['where']['e-f'] = 'e.objectid=f.triggerid';
-				$sqlParts['where']['f-ia'] = 'f.itemid=ia.itemid';
-				$sqlParts['where']['ia'] = dbConditionInt('ia.applicationid', $options['applicationids']);
+				$sub_sql_parts['from']['f'] = 'functions f';
+				$sub_sql_parts['from']['ia'] = 'items_applications ia';
+				$sub_sql_parts['where']['e-f'] = 'e.objectid=f.triggerid';
+				$sub_sql_parts['where']['f-ia'] = 'f.itemid=ia.itemid';
+				$sub_sql_parts['where']['ia'] = dbConditionInt('ia.applicationid', $options['applicationids']);
 			}
 			// items
 			elseif ($options['object'] == EVENT_OBJECT_ITEM) {
-				$sqlParts['from']['ia'] = 'items_applications ia';
-				$sqlParts['where']['e-ia'] = 'e.objectid=ia.itemid';
-				$sqlParts['where']['ia'] = dbConditionInt('ia.applicationid', $options['applicationids']);
+				$sub_sql_parts['from']['ia'] = 'items_applications ia';
+				$sub_sql_parts['where']['e-ia'] = 'e.objectid=ia.itemid';
+				$sub_sql_parts['where']['ia'] = dbConditionInt('ia.applicationid', $options['applicationids']);
 			}
 			// ignore this filter for lld rules
 		}
 
+		if ($sub_sql_parts) {
+			$sqlParts['where'][] = 'EXISTS ('.
+				'SELECT NULL'.
+				' FROM '.implode(',', $sub_sql_parts['from']).
+				' WHERE '.implode(' AND ', array_unique($sub_sql_parts['where'])).
+			')';
+		}
+
 		// severities
 		if ($options['severities'] !== null) {
 			// triggers
diff --git a/frontends/php/include/classes/api/services/CProblem.php b/frontends/php/include/classes/api/services/CProblem.php
index 86c04883ea..b7bebfb237 100644
--- a/frontends/php/include/classes/api/services/CProblem.php
+++ b/frontends/php/include/classes/api/services/CProblem.php
@@ -186,27 +186,29 @@ class CProblem extends CApiService {
 			$sqlParts['where'][] = dbConditionInt('p.objectid', $options['objectids']);
 		}
 
+		$sub_sql_parts = [];
+
 		// groupids
 		if ($options['groupids'] !== null) {
 			zbx_value2array($options['groupids']);
 
 			// triggers
 			if ($options['object'] == EVENT_OBJECT_TRIGGER) {
-				$sqlParts['from']['f'] = 'functions f';
-				$sqlParts['from']['i'] = 'items i';
-				$sqlParts['from']['hg'] = 'hosts_groups hg';
-				$sqlParts['where']['p-f'] = 'p.objectid=f.triggerid';
-				$sqlParts['where']['f-i'] = 'f.itemid=i.itemid';
-				$sqlParts['where']['i-hg'] = 'i.hostid=hg.hostid';
-				$sqlParts['where']['hg'] = dbConditionInt('hg.groupid', $options['groupids']);
+				$sub_sql_parts['from']['f'] = 'functions f';
+				$sub_sql_parts['from']['i'] = 'items i';
+				$sub_sql_parts['from']['hg'] = 'hosts_groups hg';
+				$sub_sql_parts['where']['p-f'] = 'p.objectid=f.triggerid';
+				$sub_sql_parts['where']['f-i'] = 'f.itemid=i.itemid';
+				$sub_sql_parts['where']['i-hg'] = 'i.hostid=hg.hostid';
+				$sub_sql_parts['where']['hg'] = dbConditionInt('hg.groupid', $options['groupids']);
 			}
 			// lld rules and items
 			elseif ($options['object'] == EVENT_OBJECT_LLDRULE || $options['object'] == EVENT_OBJECT_ITEM) {
-				$sqlParts['from']['i'] = 'items i';
-				$sqlParts['from']['hg'] = 'hosts_groups hg';
-				$sqlParts['where']['p-i'] = 'p.objectid=i.itemid';
-				$sqlParts['where']['i-hg'] = 'i.hostid=hg.hostid';
-				$sqlParts['where']['hg'] = dbConditionInt('hg.groupid', $options['groupids']);
+				$sub_sql_parts['from']['i'] = 'items i';
+				$sub_sql_parts['from']['hg'] = 'hosts_groups hg';
+				$sub_sql_parts['where']['p-i'] = 'p.objectid=i.itemid';
+				$sub_sql_parts['where']['i-hg'] = 'i.hostid=hg.hostid';
+				$sub_sql_parts['where']['hg'] = dbConditionInt('hg.groupid', $options['groupids']);
 			}
 		}
 
@@ -216,17 +218,17 @@ class CProblem extends CApiService {
 
 			// triggers
 			if ($options['object'] == EVENT_OBJECT_TRIGGER) {
-				$sqlParts['from']['f'] = 'functions f';
-				$sqlParts['from']['i'] = 'items i';
-				$sqlParts['where']['p-f'] = 'p.objectid=f.triggerid';
-				$sqlParts['where']['f-i'] = 'f.itemid=i.itemid';
-				$sqlParts['where']['i'] = dbConditionInt('i.hostid', $options['hostids']);
+				$sub_sql_parts['from']['f'] = 'functions f';
+				$sub_sql_parts['from']['i'] = 'items i';
+				$sub_sql_parts['where']['p-f'] = 'p.objectid=f.triggerid';
+				$sub_sql_parts['where']['f-i'] = 'f.itemid=i.itemid';
+				$sub_sql_parts['where']['i'] = dbConditionInt('i.hostid', $options['hostids']);
 			}
 			// lld rules and items
 			elseif ($options['object'] == EVENT_OBJECT_LLDRULE || $options['object'] == EVENT_OBJECT_ITEM) {
-				$sqlParts['from']['i'] = 'items i';
-				$sqlParts['where']['p-i'] = 'p.objectid=i.itemid';
-				$sqlParts['where']['i'] = dbConditionInt('i.hostid', $options['hostids']);
+				$sub_sql_parts['from']['i'] = 'items i';
+				$sub_sql_parts['where']['p-i'] = 'p.objectid=i.itemid';
+				$sub_sql_parts['where']['i'] = dbConditionInt('i.hostid', $options['hostids']);
 			}
 		}
 
@@ -236,21 +238,29 @@ class CProblem extends CApiService {
 
 			// triggers
 			if ($options['object'] == EVENT_OBJECT_TRIGGER) {
-				$sqlParts['from']['f'] = 'functions f';
-				$sqlParts['from']['ia'] = 'items_applications ia';
-				$sqlParts['where']['p-f'] = 'p.objectid=f.triggerid';
-				$sqlParts['where']['f-ia'] = 'f.itemid=ia.itemid';
-				$sqlParts['where']['ia'] = dbConditionInt('ia.applicationid', $options['applicationids']);
+				$sub_sql_parts['from']['f'] = 'functions f';
+				$sub_sql_parts['from']['ia'] = 'items_applications ia';
+				$sub_sql_parts['where']['p-f'] = 'p.objectid=f.triggerid';
+				$sub_sql_parts['where']['f-ia'] = 'f.itemid=ia.itemid';
+				$sub_sql_parts['where']['ia'] = dbConditionInt('ia.applicationid', $options['applicationids']);
 			}
 			// items
 			elseif ($options['object'] == EVENT_OBJECT_ITEM) {
-				$sqlParts['from']['ia'] = 'items_applications ia';
-				$sqlParts['where']['p-ia'] = 'p.objectid=ia.itemid';
-				$sqlParts['where']['ia'] = dbConditionInt('ia.applicationid', $options['applicationids']);
+				$sub_sql_parts['from']['ia'] = 'items_applications ia';
+				$sub_sql_parts['where']['p-ia'] = 'p.objectid=ia.itemid';
+				$sub_sql_parts['where']['ia'] = dbConditionInt('ia.applicationid', $options['applicationids']);
 			}
 			// ignore this filter for lld rules
 		}
 
+		if ($sub_sql_parts) {
+			$sqlParts['where'][] = 'EXISTS ('.
+				'SELECT NULL'.
+				' FROM '.implode(',', $sub_sql_parts['from']).
+				' WHERE '.implode(' AND ', array_unique($sub_sql_parts['where'])).
+			')';
+		}
+
 		// severities
 		if ($options['severities'] !== null) {
 			// triggers