diff --git a/application/src/main/java/org/thingsboard/server/config/WebSocketConfiguration.java b/application/src/main/java/org/thingsboard/server/config/WebSocketConfiguration.java
index 3cd1e2a6e3..38f37cf35d 100644
--- a/application/src/main/java/org/thingsboard/server/config/WebSocketConfiguration.java
+++ b/application/src/main/java/org/thingsboard/server/config/WebSocketConfiguration.java
@@ -17,6 +17,7 @@ package org.thingsboard.server.config;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.socket.WebSocketHandler;
@@ -40,11 +41,16 @@ public class WebSocketConfiguration implements WebSocketConfigurer {
 
     private final WebSocketHandler wsHandler;
 
+    @Value("${server.ws.max_text_message_buffer_size:32768}")
+    private int maxTextMessageBufferSize;
+    @Value("${server.ws.max_binary_message_buffer_size:32768}")
+    private int maxBinaryMessageBufferSize;
+
     @Bean
     public ServletServerContainerFactoryBean createWebSocketContainer() {
         ServletServerContainerFactoryBean container = new ServletServerContainerFactoryBean();
-        container.setMaxTextMessageBufferSize(32768);
-        container.setMaxBinaryMessageBufferSize(32768);
+        container.setMaxTextMessageBufferSize(maxTextMessageBufferSize);
+        container.setMaxBinaryMessageBufferSize(maxBinaryMessageBufferSize);
         return container;
     }
 
diff --git a/application/src/main/resources/thingsboard.yml b/application/src/main/resources/thingsboard.yml
index fc23d050a8..2d1fc1b63f 100644
--- a/application/src/main/resources/thingsboard.yml
+++ b/application/src/main/resources/thingsboard.yml
@@ -78,6 +78,10 @@ server:
     max_entities_per_data_subscription: "${TB_SERVER_WS_MAX_ENTITIES_PER_DATA_SUBSCRIPTION:10000}"
     # Maximum number of alarms returned for single alarm subscription. For example, no more than 10,000 alarms on the alarm widget
     max_entities_per_alarm_subscription: "${TB_SERVER_WS_MAX_ENTITIES_PER_ALARM_SUBSCRIPTION:10000}"
+    # Maximum size (bytes) of incoming WS text message
+    max_text_message_buffer_size: "${TB_SERVER_WS_MAX_TEXT_MESSAGE_BUFFER_SIZE:32768}"
+    # Maximum size (bytes) of incoming WS binary message
+    max_binary_message_buffer_size: "${TB_SERVER_WS_MAX_BINARY_MESSAGE_BUFFER_SIZE:32768}"
     # Maximum queue size of the websocket updates per session. This restriction prevents infinite updates of WS
     max_queue_messages_per_session: "${TB_SERVER_WS_DEFAULT_QUEUE_MESSAGES_PER_SESSION:1000}"
     # Maximum time between WS session opening and sending auth command
diff --git a/ui-ngx/src/app/modules/home/components/calculated-fields/components/dialog/calculated-field-dialog.component.html b/ui-ngx/src/app/modules/home/components/calculated-fields/components/dialog/calculated-field-dialog.component.html
index b463930c09..503927c71a 100644
--- a/ui-ngx/src/app/modules/home/components/calculated-fields/components/dialog/calculated-field-dialog.component.html
+++ b/ui-ngx/src/app/modules/home/components/calculated-fields/components/dialog/calculated-field-dialog.component.html
@@ -39,8 +39,6 @@
               <mat-error>
                 @if (fieldFormGroup.get('name').hasError('required')) {
                   {{ 'common.hint.title-required' | translate }}
-                } @else if (fieldFormGroup.get('name').hasError('pattern')) {
-                  {{ 'common.hint.title-pattern' | translate }}
                 } @else if (fieldFormGroup.get('name').hasError('maxlength')) {
                   {{ 'common.hint.title-max-length' | translate }}
                 }
diff --git a/ui-ngx/src/app/modules/home/components/calculated-fields/components/dialog/calculated-field-dialog.component.ts b/ui-ngx/src/app/modules/home/components/calculated-fields/components/dialog/calculated-field-dialog.component.ts
index 4e37e67c71..52e1c0f3de 100644
--- a/ui-ngx/src/app/modules/home/components/calculated-fields/components/dialog/calculated-field-dialog.component.ts
+++ b/ui-ngx/src/app/modules/home/components/calculated-fields/components/dialog/calculated-field-dialog.component.ts
@@ -29,6 +29,8 @@ import {
   calculatedFieldTypes,
   CalculatedFieldTypeTranslations
 } from '@shared/models/calculated-field.models';
+import { digitsRegex } from '@shared/models/regex.constants';
+import { AttributeScope } from '@shared/models/telemetry/telemetry.models';
 import { EntityType } from '@shared/models/entity-type.models';
 import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
 import { CalculatedFieldsService } from '@core/http/calculated-fields.service';