diff -u b/password_policy_characters/src/Plugin/PasswordConstraint/PasswordCharacter.php b/password_policy_characters/src/Plugin/PasswordConstraint/PasswordCharacter.php
--- b/password_policy_characters/src/Plugin/PasswordConstraint/PasswordCharacter.php
+++ b/password_policy_characters/src/Plugin/PasswordConstraint/PasswordCharacter.php
@@ -69,13 +69,13 @@
 
       case 'special':
         if ($count_special < $configuration['character_count']) {
-          $validation->setErrorMessage($this->formatPlural($configuration['character_count'], 'Password must contain at least 1 special character.', 'Password must contain at least @count special characters.'));
+          $validation->setErrorMessage($this->formatPlural($configuration['character_count'], 'Password must contain at least 1 special character.', 'Password must contain at least @count unique special characters.'));
         }
         break;
 
       case 'numeric':
         if ($count_numeric < $configuration['character_count']) {
-          $validation->setErrorMessage($this->formatPlural($configuration['character_count'], 'Password must contain at least 1 numeric character.', 'Password must contain at least @count numeric characters.'));
+          $validation->setErrorMessage($this->formatPlural($configuration['character_count'], 'Password must contain at least 1 numeric character.', 'Password must contain at least @count unique numeric characters.'));
         }
         break;
     }
@@ -139,7 +139,9 @@
    * {@inheritdoc}
    */
   public function getSummary() {
-    return $this->t('Password must contain @characters @character-type characters', ['@character-type' => $this->configuration['character_type'], '@characters' => $this->configuration['character_count']]);
+    return $this->formatPlural($this->configuration['character_count'], 'Password must contain at least 1 @character_type character.', 'Password must contain at least @count unique @character_type characters.', [
+      '@character_type' => $this->configuration['character_type'],
+    ]);
   }
 
 }
only in patch2:
unchanged:
--- a/password_policy_characters/tests/src/Functional/PasswordCharacterOperations.php
+++ b/password_policy_characters/tests/src/Functional/PasswordCharacterOperations.php
@@ -40,19 +40,19 @@ class PasswordCharacterOperations extends BrowserTestBase {
     $this->assertSession()->pageTextContains('Character type');
 
     $this->drupalPostForm(NULL, ['character_type' => 'special', 'character_count' => 2], 'Save');
-    $this->assertSession()->pageTextContains('Password must contain 2 special characters');
+    $this->assertSession()->pageTextContains('Password must contain at least 2 unique special characters');
 
     $this->drupalGet('admin/config/system/password_policy/constraint/add/test_policy/password_policy_character_constraint');
     $this->drupalPostForm(NULL, ['character_type' => 'numeric', 'character_count' => 3], 'Save');
-    $this->assertSession()->pageTextContains('Password must contain 3 numeric characters');
+    $this->assertSession()->pageTextContains('Password must contain at least 3 unique numeric characters');
 
     $this->drupalGet('admin/config/system/password_policy/constraint/add/test_policy/password_policy_character_constraint');
     $this->drupalPostForm(NULL, ['character_type' => 'lowercase', 'character_count' => 4], 'Save');
-    $this->assertSession()->pageTextContains('Password must contain 4 lowercase characters');
+    $this->assertSession()->pageTextContains('Password must contain at least 4 unique lowercase characters');
 
     $this->drupalGet('admin/config/system/password_policy/constraint/add/test_policy/password_policy_character_constraint');
     $this->drupalPostForm(NULL, ['character_type' => 'uppercase', 'character_count' => 5], 'Save');
-    $this->assertSession()->pageTextContains('Password must contain 5 uppercase characters');
+    $this->assertSession()->pageTextContains('Password must contain at least 5 unique uppercase characters');
 
     $this->drupalGet('admin/config/system/password_policy/constraint/add/test_policy/password_policy_character_constraint');
     $this->drupalPostForm(NULL, ['character_type' => 'special', 'character_count' => ''], 'Save');