diff --git a/src/datasource-zabbix/datasource.js b/src/datasource-zabbix/datasource.js
index 8dae24d..09faf6d 100644
--- a/src/datasource-zabbix/datasource.js
+++ b/src/datasource-zabbix/datasource.js
@@ -323,8 +323,8 @@ export class ZabbixDatasource {
 
     return this.zabbix.getITServices(itServiceFilter)
     .then(itservices => {
-      return this.zabbix.getSLA(itservices, timeRange, target, options);
-    });
+      return this.zabbix.getSLA(itservices, timeRange, target, options);})
+    .then(itservicesdp => this.applyDataProcessingFunctions(itservicesdp, target));
   }
 
   queryTriggersData(target, timeRange) {
diff --git a/src/datasource-zabbix/partials/query.editor.html b/src/datasource-zabbix/partials/query.editor.html
index 33b2f7d..ccf5ee3 100644
--- a/src/datasource-zabbix/partials/query.editor.html
+++ b/src/datasource-zabbix/partials/query.editor.html
@@ -201,7 +201,7 @@
   </div>
 
   <!-- Metric processing functions -->
-  <div class="gf-form-inline" ng-show="ctrl.target.mode == editorMode.METRICS || ctrl.target.mode == editorMode.ITEMID">
+  <div class="gf-form-inline" ng-show="ctrl.target.mode == editorMode.METRICS || ctrl.target.mode == editorMode.ITEMID || ctrl.target.mode == editorMode.ITSERVICE">
     <div class="gf-form">
       <label class="gf-form-label query-keyword width-7">Functions</label>
     </div>
diff --git a/src/datasource-zabbix/responseHandler.js b/src/datasource-zabbix/responseHandler.js
index e340c80..ab9174e 100644
--- a/src/datasource-zabbix/responseHandler.js
+++ b/src/datasource-zabbix/responseHandler.js
@@ -123,22 +123,27 @@ function extractText(str, pattern, useCaptureGroups) {
 }
 
 function handleSLAResponse(itservice, slaProperty, slaObject) {
-  var targetSLA = slaObject[itservice.serviceid].sla[0];
+  var targetSLA = slaObject[itservice.serviceid].sla;
   if (slaProperty.property === 'status') {
     var targetStatus = parseInt(slaObject[itservice.serviceid].status);
     return {
       target: itservice.name + ' ' + slaProperty.name,
       datapoints: [
-        [targetStatus, targetSLA.to * 1000]
+        [targetStatus, targetSLA[0].to * 1000]
       ]
     };
   } else {
+    let i;
+    let slaArr = [];
+    for (i = 0; i < targetSLA.length; i++) {
+      if (i === 0) {
+        slaArr.push([targetSLA[i][slaProperty.property], targetSLA[i].from * 1000]);
+      }
+      slaArr.push([targetSLA[i][slaProperty.property], targetSLA[i].to * 1000]);
+    }
     return {
       target: itservice.name + ' ' + slaProperty.name,
-      datapoints: [
-        [targetSLA[slaProperty.property], targetSLA.from * 1000],
-        [targetSLA[slaProperty.property], targetSLA.to * 1000]
-      ]
+      datapoints: slaArr
     };
   }
 }
diff --git a/src/datasource-zabbix/zabbix/connectors/zabbix_api/zabbixAPIConnector.js b/src/datasource-zabbix/zabbix/connectors/zabbix_api/zabbixAPIConnector.js
index 0282fdf..6fd7931 100644
--- a/src/datasource-zabbix/zabbix/connectors/zabbix_api/zabbixAPIConnector.js
+++ b/src/datasource-zabbix/zabbix/connectors/zabbix_api/zabbixAPIConnector.js
@@ -317,13 +317,24 @@ export class ZabbixAPIConnector {
   }
 
   getSLA(serviceids, timeRange) {
+    let defaultRange = 86400;
+    let i;
+    let getIntervals = [];
     let [timeFrom, timeTo] = timeRange;
+
+    for (i = timeFrom; i <= timeTo; i = i + defaultRange) {
+      if (timeTo < (i + defaultRange)) {
+        if (timeTo !== i) {
+          getIntervals.push({from : i, to : timeTo});
+        }
+      } else {
+        getIntervals.push({from : i, to : (i + defaultRange)});
+      }
+    }
+
     var params = {
       serviceids: serviceids,
-      intervals: [{
-        from: timeFrom,
-        to: timeTo
-      }]
+      intervals: getIntervals
     };
     return this.request('service.getsla', params);
   }