diff --git a/backend/analytics/src/main/java/com/griddynamics/msd365fp/manualreview/analytics/service/AlertService.java b/backend/analytics/src/main/java/com/griddynamics/msd365fp/manualreview/analytics/service/AlertService.java
index 7b20ed2..3294ab3 100644
--- a/backend/analytics/src/main/java/com/griddynamics/msd365fp/manualreview/analytics/service/AlertService.java
+++ b/backend/analytics/src/main/java/com/griddynamics/msd365fp/manualreview/analytics/service/AlertService.java
@@ -308,7 +308,7 @@ public class AlertService {
 
     private String getTemplate(Map<String, String> mailTemplates, String templateName) {
         String template = mailTemplates.get(templateName);
-        if (template.isEmpty()) {
+        if (template.isBlank()) {
             throw new TemplateNotFoundException(String.format("Template [%s] was not found. " +
                             "Please check ConfigurableAppSetting container in CosmosDB for [%s] parameter.",
                     templateName, AppSettingsType.MAIL_TEMPLATES.toString()));