Narendra Singh Rathore
--- a/core/modules/language/src/Entity/ContentLanguageSettings.php
+++ b/core/modules/language/src/Entity/ContentLanguageSettings.php
+   * @param \Symfony\Component\Validator\Context\ExecutionContextInterface $context
+   *   The validation execution context.
+   *
+   * @see \Symfony\Component\Validator\Constraints\CallbackValidator
+   * @see core/modules/language/config/schema/language.schema.yml
+   */
+  public static function validateId(string $value, ExecutionContextInterface $context): void {
+    $config_being_validated = $context->getRoot();
+    $target_entity_type_id = $config_being_validated->get('target_entity_type_id')->getValue();
+    $target_bundle = $config_being_validated->get('target_bundle')->getValue();
+    if ($target_entity_type_id . '.' . $target_bundle !== $value) {
+      $context->addViolation('The id %value must be a combination of $target_entity_type_id.$target_bundle.', [
+        '%value' => $value,
+      ]);
+    }
+  }