diff --git a/lib/Form/Block/BlockRendererHelper.php b/lib/Form/Block/BlockRendererHelper.php
index 7dd72729b1..623076b95f 100644
--- a/lib/Form/Block/BlockRendererHelper.php
+++ b/lib/Form/Block/BlockRendererHelper.php
@@ -26,7 +26,7 @@ class BlockRendererHelper {
     $this->wp = $wp;
   }
 
-  public function getInputValidation(array $block, array $extraRules = []): string {
+  public function getInputValidation(array $block, array $extraRules = [], ?int $formId = null): string {
     $rules = [];
     $blockId = $this->wp->escAttr($block['id']);
 
@@ -51,7 +51,7 @@ class BlockRendererHelper {
       $rules['required'] = true;
       $rules['mincheck'] = 1;
       $rules['group'] = $blockId;
-      $rules['errors-container'] = '.mailpoet_error_' . $blockId;
+      $rules['errors-container'] = '.mailpoet_error_' . $blockId . ($formId ? '_' . $formId : '');
       $rules['required-message'] = __('Please select a list.', 'mailpoet');
     }
 
@@ -71,13 +71,13 @@ class BlockRendererHelper {
 
     if (in_array($block['type'], ['radio', 'checkbox'])) {
       $rules['group'] = 'custom_field_' . $blockId;
-      $rules['errors-container'] = '.mailpoet_error_' . $blockId;
+      $rules['errors-container'] = '.mailpoet_error_' . $blockId . ($formId ? '_' . $formId : '');
       $rules['required-message'] = __('Please select at least one option.', 'mailpoet');
     }
 
     if ($block['type'] === 'date') {
       $rules['group'] = 'custom_field_' . $blockId;
-      $rules['errors-container'] = '.mailpoet_error_' . $blockId;
+      $rules['errors-container'] = '.mailpoet_error_' . $blockId . ($formId ? '_' . $formId : '');
     }
 
     $validation = [];
diff --git a/lib/Form/Block/Checkbox.php b/lib/Form/Block/Checkbox.php
index 41aa9fefd6..f84b322be1 100644
--- a/lib/Form/Block/Checkbox.php
+++ b/lib/Form/Block/Checkbox.php
@@ -26,11 +26,11 @@ class Checkbox {
     $this->wp = $wp;
   }
 
-  public function render(array $block, array $formSettings): string {
+  public function render(array $block, array $formSettings, ?int $formId = null): string {
     $html = '';
 
     $fieldName = 'data[' . $this->rendererHelper->getFieldName($block) . ']';
-    $fieldValidation = $this->rendererHelper->getInputValidation($block);
+    $fieldValidation = $this->rendererHelper->getInputValidation($block, [], $formId);
 
     $html .= $this->rendererHelper->renderLabel($block, $formSettings);
 
@@ -70,7 +70,7 @@ class Checkbox {
       $html .= '</label>';
     }
 
-    $html .= '<span class="mailpoet_error_' . $this->wp->escAttr($block['id']) . '"></span>';
+    $html .= '<span class="mailpoet_error_' . $this->wp->escAttr($block['id']) . ($formId ? '_' . $formId : '') . '"></span>';
 
     return $this->wrapper->render($block, $html);
   }
diff --git a/lib/Form/Block/Date.php b/lib/Form/Block/Date.php
index f679e93960..05f97bd4ce 100644
--- a/lib/Form/Block/Date.php
+++ b/lib/Form/Block/Date.php
@@ -33,14 +33,14 @@ class Date {
     $this->wp = $wp;
   }
 
-  public function render(array $block, array $formSettings): string {
+  public function render(array $block, array $formSettings, ?int $formId = null): string {
     $html = '';
     $html .= $this->rendererHelper->renderLabel($block, $formSettings);
-    $html .= $this->renderDateSelect($block, $formSettings);
+    $html .= $this->renderDateSelect($formId, $block, $formSettings);
     return $this->wrapper->render($block, $html);
   }
 
-  private function renderDateSelect(array $block = [], $formSettings = []): string {
+  private function renderDateSelect(?int $formId, array $block = [], $formSettings = []): string {
     $html = '';
 
     $fieldName = 'data[' . $this->rendererHelper->getFieldName($block) . ']';
@@ -65,7 +65,7 @@ class Date {
         $html .= ' style="' . $this->wp->escAttr($this->blockStylesRenderer->renderForSelect([], $formSettings)) . '"';
         $html .= $this->rendererHelper->getInputValidation($block, [
           'required-message' => __('Please select a day', 'mailpoet'),
-        ]);
+        ], $formId);
         $html .= 'name="' . $fieldName . '[day]" placeholder="' . __('Day', 'mailpoet') . '">';
         $html .= $this->getDays($block);
         $html .= '</select>';
@@ -74,7 +74,7 @@ class Date {
         $html .= ' style="' . $this->wp->escAttr($this->blockStylesRenderer->renderForSelect([], $formSettings)) . '"';
         $html .= $this->rendererHelper->getInputValidation($block, [
           'required-message' => __('Please select a month', 'mailpoet'),
-        ]);
+        ], $formId);
         $html .= 'name="' . $fieldName . '[month]" placeholder="' . __('Month', 'mailpoet') . '">';
         $html .= $this->getMonths($block);
         $html .= '</select>';
@@ -83,14 +83,14 @@ class Date {
         $html .= ' style="' . $this->wp->escAttr($this->blockStylesRenderer->renderForSelect([], $formSettings)) . '"';
         $html .= $this->rendererHelper->getInputValidation($block, [
           'required-message' => __('Please select a year', 'mailpoet'),
-        ]);
+        ], $formId);
         $html .= 'name="' . $fieldName . '[year]" placeholder="' . __('Year', 'mailpoet') . '">';
         $html .= $this->getYears($block);
         $html .= '</select>';
       }
     }
 
-    $html .= '<span class="mailpoet_error_' . $this->wp->escAttr($block['id']) . '"></span>';
+    $html .= '<span class="mailpoet_error_' . $this->wp->escAttr($block['id']) . ($formId ? '_' . $formId : '') . '"></span>';
 
     return $html;
   }
diff --git a/lib/Form/Block/Radio.php b/lib/Form/Block/Radio.php
index a01e700479..91bb461036 100644
--- a/lib/Form/Block/Radio.php
+++ b/lib/Form/Block/Radio.php
@@ -26,11 +26,11 @@ class Radio {
     $this->wp = $wp;
   }
 
-  public function render(array $block, array $formSettings): string {
+  public function render(array $block, array $formSettings, ?int $formId = null): string {
     $html = '';
 
     $fieldName = 'data[' . $this->rendererHelper->getFieldName($block) . ']';
-    $fieldValidation = $this->rendererHelper->getInputValidation($block);
+    $fieldValidation = $this->rendererHelper->getInputValidation($block, [], $formId);
 
     $html .= $this->rendererHelper->renderLabel($block, $formSettings);
 
@@ -73,7 +73,7 @@ class Radio {
       $html .= '</label>';
     }
 
-    $html .= '<span class="mailpoet_error_' . $block['id'] . '"></span>';
+    $html .= '<span class="mailpoet_error_' . $block['id'] . ($formId ? '_' . $formId : '') . '"></span>';
 
     return $this->wrapper->render($block, $html);
   }
diff --git a/lib/Form/Block/Segment.php b/lib/Form/Block/Segment.php
index a048f3ef92..4e1089a705 100644
--- a/lib/Form/Block/Segment.php
+++ b/lib/Form/Block/Segment.php
@@ -32,11 +32,11 @@ class Segment {
     $this->segmentsRepository = $segmentsRepository;
   }
 
-  public function render(array $block, array $formSettings): string {
+  public function render(array $block, array $formSettings, ?int $formId = null): string {
     $html = '';
 
     $fieldName = 'data[' . $this->rendererHelper->getFieldName($block) . ']';
-    $fieldValidation = $this->rendererHelper->getInputValidation($block);
+    $fieldValidation = $this->rendererHelper->getInputValidation($block, [], $formId);
 
     $html .= $this->rendererHelper->renderLabel($block, $formSettings);
 
@@ -67,7 +67,7 @@ class Segment {
       $html .= '</label>';
     }
 
-    $html .= '<span class="mailpoet_error_' . $block['id'] . '"></span>';
+    $html .= '<span class="mailpoet_error_' . $block['id'] . ($formId ? '_' . $formId : '') . '"></span>';
 
     return $this->wrapper->render($block, $html);
   }
diff --git a/lib/Form/BlocksRenderer.php b/lib/Form/BlocksRenderer.php
index 832595b05e..00a1ec7bf2 100644
--- a/lib/Form/BlocksRenderer.php
+++ b/lib/Form/BlocksRenderer.php
@@ -99,7 +99,7 @@ class BlocksRenderer {
     $this->paragraph = $paragraph;
   }
 
-  public function renderBlock(array $block, array $formSettings): string {
+  public function renderBlock(array $block, array $formSettings, ?int $formId): string {
     $html = '';
     switch ($block['type']) {
       case FormEntity::HTML_BLOCK_TYPE:
@@ -123,19 +123,19 @@ class BlocksRenderer {
         break;
 
       case FormEntity::CHECKBOX_BLOCK_TYPE:
-        $html .= $this->checkbox->render($block, $formSettings);
+        $html .= $this->checkbox->render($block, $formSettings, $formId);
         break;
 
       case FormEntity::RADIO_BLOCK_TYPE:
-        $html .= $this->radio->render($block, $formSettings);
+        $html .= $this->radio->render($block, $formSettings, $formId);
         break;
 
       case FormEntity::SEGMENT_SELECTION_BLOCK_TYPE:
-        $html .= $this->segment->render($block, $formSettings);
+        $html .= $this->segment->render($block, $formSettings, $formId);
         break;
 
       case FormEntity::DATE_BLOCK_TYPE:
-        $html .= $this->date->render($block, $formSettings);
+        $html .= $this->date->render($block, $formSettings, $formId);
         break;
 
       case FormEntity::SELECT_BLOCK_TYPE:
diff --git a/lib/Form/Renderer.php b/lib/Form/Renderer.php
index e77a8f6044..6b1f73a89a 100644
--- a/lib/Form/Renderer.php
+++ b/lib/Form/Renderer.php
@@ -44,7 +44,7 @@ class Renderer {
 
   public function renderHTML(FormEntity $form = null): string {
     if (($form instanceof FormEntity) && !empty($form->getBody()) && is_array($form->getSettings())) {
-      return $this->renderBlocks($form->getBody(), $form->getSettings() ?? []);
+      return $this->renderBlocks($form->getBody(), $form->getSettings() ?? [], $form->getId());
     }
     return '';
   }
@@ -57,7 +57,13 @@ class Renderer {
     }
   }
 
-  public function renderBlocks(array $blocks = [], array $formSettings = [], bool $honeypotEnabled = true, bool $captchaEnabled = true): string {
+  public function renderBlocks(
+    array $blocks = [],
+    array $formSettings = [],
+    ?int $formId = null,
+    bool $honeypotEnabled = true,
+    bool $captchaEnabled = true
+  ): string {
     // add honeypot for spambots
     $html = ($honeypotEnabled) ? $this->renderHoneypot() : '';
     foreach ($blocks as $key => $block) {
@@ -69,9 +75,9 @@ class Renderer {
       }
       if (in_array($block['type'], [FormEntity::COLUMN_BLOCK_TYPE, FormEntity::COLUMNS_BLOCK_TYPE])) {
         $blocks = $block['body'] ?? [];
-        $html .= $this->blocksRenderer->renderContainerBlock($block, $this->renderBlocks($blocks, $formSettings, false)) . PHP_EOL;
+        $html .= $this->blocksRenderer->renderContainerBlock($block, $this->renderBlocks($blocks, $formSettings, $formId, false)) . PHP_EOL;
       } else {
-        $html .= $this->blocksRenderer->renderBlock($block, $formSettings) . PHP_EOL;
+        $html .= $this->blocksRenderer->renderBlock($block, $formSettings, $formId) . PHP_EOL;
       }
     }
     return $html;
diff --git a/lib/Subscription/CaptchaRenderer.php b/lib/Subscription/CaptchaRenderer.php
index 25e552fe9a..70ef8d9bbf 100644
--- a/lib/Subscription/CaptchaRenderer.php
+++ b/lib/Subscription/CaptchaRenderer.php
@@ -120,7 +120,7 @@ class CaptchaRenderer {
     $formHtml .= '</p>';
 
     // subscription form
-    $formHtml .= $this->formRenderer->renderBlocks($form, [], $honeypot = false);
+    $formHtml .= $this->formRenderer->renderBlocks($form, [], null, $honeypot = false);
     $formHtml .= '</div>';
     $formHtml .= $this->renderFormMessages($formModel, $showSuccessMessage, $showErrorMessage);
     $formHtml .= '</form>';
diff --git a/lib/Subscription/ManageSubscriptionFormRenderer.php b/lib/Subscription/ManageSubscriptionFormRenderer.php
index 963aa88b2c..a909324fe4 100644
--- a/lib/Subscription/ManageSubscriptionFormRenderer.php
+++ b/lib/Subscription/ManageSubscriptionFormRenderer.php
@@ -106,7 +106,7 @@ class ManageSubscriptionFormRenderer {
       'email' => $subscriber->email,
       'token' => $this->linkTokens->getToken($subscriberEntity),
       'editEmailInfo' => __('Need to change your email address? Unsubscribe here, then simply sign up again.', 'mailpoet'),
-      'formHtml' => $this->formRenderer->renderBlocks($form, [], $honeypot = false, $captcha = false),
+      'formHtml' => $this->formRenderer->renderBlocks($form, [], null, $honeypot = false, $captcha = false),
       'formState' => $formState,
     ];
 
diff --git a/tests/unit/Form/RendererTest.php b/tests/unit/Form/RendererTest.php
index ff20e2265a..793dba0542 100644
--- a/tests/unit/Form/RendererTest.php
+++ b/tests/unit/Form/RendererTest.php
@@ -97,7 +97,7 @@ class RendererTest extends \MailPoetUnitTest {
       ->method('get')
       ->with('captcha.type')
       ->willReturn(Captcha::TYPE_DISABLED);
-    $html = $this->renderer->renderBlocks(Fixtures::get('simple_form_body'), [], false);
+    $html = $this->renderer->renderBlocks(Fixtures::get('simple_form_body'), [], null, false);
     $hpLabel = $this->htmlParser->findByXpath($html, "//label[@class='mailpoet_hp_email_label']");
     expect($hpLabel->length)->equals(0);
     $recaptcha = $this->htmlParser->findByXpath($html, "//div[@class='mailpoet_recaptcha']");