diff --git a/dispatchers/scheduler_it_test.go b/dispatchers/scheduler_it_test.go
index 85b6f47e5..215d48a20 100644
--- a/dispatchers/scheduler_it_test.go
+++ b/dispatchers/scheduler_it_test.go
@@ -23,6 +23,8 @@ package dispatchers
 import (
 	"testing"
 
+	"github.com/cgrates/cgrates/config"
+
 	"github.com/cgrates/cgrates/utils"
 )
 
@@ -77,3 +79,131 @@ func testDspSchedPing(t *testing.T) {
 		t.Errorf("Received: %s", reply)
 	}
 }
+
+func TestDspSchedulerSv1PingErrorNilEvent(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	cgrCfg.DispatcherSCfg().AttributeSConns = []string{"test"}
+	var reply *string
+	result := dspSrv.SchedulerSv1Ping(nil, reply)
+	expected := "MANDATORY_IE_MISSING: [ApiKey]"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspSchedulerSv1PingErrorNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	cgrCfg.DispatcherSCfg().AttributeSConns = []string{"test"}
+	CGREvent := &utils.CGREvent{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.SchedulerSv1Ping(CGREvent, reply)
+	expected := "MANDATORY_IE_MISSING: [ApiKey]"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspSchedulerSv1PingNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	CGREvent := &utils.CGREvent{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.SchedulerSv1Ping(CGREvent, reply)
+	expected := "DISPATCHER_ERROR:NOT_FOUND"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspSchedulerSv1ReloadErrorNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	cgrCfg.DispatcherSCfg().AttributeSConns = []string{"test"}
+	CGREvent := &utils.CGREvent{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.SchedulerSv1Reload(CGREvent, reply)
+	expected := "MANDATORY_IE_MISSING: [ApiKey]"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspSchedulerSv1ReloadPingNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	CGREvent := &utils.CGREvent{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.SchedulerSv1Reload(CGREvent, reply)
+	expected := "DISPATCHER_ERROR:NOT_FOUND"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspSchedulerSv1ExecuteActionsErrorNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	cgrCfg.DispatcherSCfg().AttributeSConns = []string{"test"}
+	CGREvent := &utils.AttrsExecuteActions{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.SchedulerSv1ExecuteActions(CGREvent, reply)
+	expected := "MANDATORY_IE_MISSING: [ApiKey]"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspSchedulerSv1ExecuteActionsNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	CGREvent := &utils.AttrsExecuteActions{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.SchedulerSv1ExecuteActions(CGREvent, reply)
+	expected := "DISPATCHER_ERROR:NOT_FOUND"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspSchedulerSv1ExecuteActionPlansErrorNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	cgrCfg.DispatcherSCfg().AttributeSConns = []string{"test"}
+	CGREvent := &utils.AttrsExecuteActionPlans{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.SchedulerSv1ExecuteActionPlans(CGREvent, reply)
+	expected := "MANDATORY_IE_MISSING: [ApiKey]"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspSchedulerSv1ExecuteActionPlansNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	CGREvent := &utils.AttrsExecuteActionPlans{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.SchedulerSv1ExecuteActionPlans(CGREvent, reply)
+	expected := "DISPATCHER_ERROR:NOT_FOUND"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
diff --git a/dispatchers/servicemanager_it_test.go b/dispatchers/servicemanager_it_test.go
new file mode 100644
index 000000000..c477e9811
--- /dev/null
+++ b/dispatchers/servicemanager_it_test.go
@@ -0,0 +1,156 @@
+// +build integration
+
+/*
+Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
+Copyright (C) ITsysCOM GmbH
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>
+*/
+
+package dispatchers
+
+import (
+	"testing"
+
+	"github.com/cgrates/cgrates/config"
+	"github.com/cgrates/cgrates/utils"
+)
+
+func TestDspServiceManagerV1PingErrorNilEvent(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	cgrCfg.DispatcherSCfg().AttributeSConns = []string{"test"}
+	var reply *string
+	result := dspSrv.ServiceManagerV1Ping(nil, reply)
+	expected := "MANDATORY_IE_MISSING: [ApiKey]"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspServiceManagerV1PingErrorNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	cgrCfg.DispatcherSCfg().AttributeSConns = []string{"test"}
+	CGREvent := &utils.CGREvent{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.ServiceManagerV1Ping(CGREvent, reply)
+	expected := "MANDATORY_IE_MISSING: [ApiKey]"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspServiceManagerV1PingNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	CGREvent := &utils.CGREvent{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.ServiceManagerV1Ping(CGREvent, reply)
+	expected := "DISPATCHER_ERROR:NOT_FOUND"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspServiceManagerV1StartServiceErrorNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	cgrCfg.DispatcherSCfg().AttributeSConns = []string{"test"}
+	CGREvent := ArgStartServiceWithAPIOpts{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.ServiceManagerV1StartService(CGREvent, reply)
+	expected := "MANDATORY_IE_MISSING: [ApiKey]"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspServiceManagerV1StartServiceNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	CGREvent := ArgStartServiceWithAPIOpts{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.ServiceManagerV1StartService(CGREvent, reply)
+	expected := "DISPATCHER_ERROR:NOT_FOUND"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspServiceManagerV1StopServiceErrorNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	cgrCfg.DispatcherSCfg().AttributeSConns = []string{"test"}
+	CGREvent := ArgStartServiceWithAPIOpts{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.ServiceManagerV1StopService(CGREvent, reply)
+	expected := "MANDATORY_IE_MISSING: [ApiKey]"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspServiceManagerV1StopServiceNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	CGREvent := ArgStartServiceWithAPIOpts{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.ServiceManagerV1StopService(CGREvent, reply)
+	expected := "DISPATCHER_ERROR:NOT_FOUND"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspServiceManagerV1ServiceStatusNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	cgrCfg.DispatcherSCfg().AttributeSConns = []string{"test"}
+	CGREvent := ArgStartServiceWithAPIOpts{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.ServiceManagerV1ServiceStatus(CGREvent, reply)
+	expected := "MANDATORY_IE_MISSING: [ApiKey]"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}
+
+func TestDspServiceManagerV1ServiceStatusErrorNil(t *testing.T) {
+	cgrCfg := config.NewDefaultCGRConfig()
+	dspSrv := NewDispatcherService(nil, cgrCfg, nil, nil)
+	CGREvent := ArgStartServiceWithAPIOpts{
+		Tenant: "tenant",
+	}
+	var reply *string
+	result := dspSrv.ServiceManagerV1ServiceStatus(CGREvent, reply)
+	expected := "DISPATCHER_ERROR:NOT_FOUND"
+	if result == nil || result.Error() != expected {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", expected, result)
+	}
+}