Pieter Frenssen
--- a/src/Model/WebformSubmissionResult.php
+++ b/src/Model/WebformSubmissionResult.php
    return $this->validationErrors;
  }

+  /**
+   * Returns the validation error that corresponds to the given element.
+   *
+   * @param string|null $elementId
+   *   The ID of the Webform element for which to return the validation error,
+   *   or NULL to return the general validation error.
+   *
+   * @return \Drupal\graphql_webform\Model\WebformSubmissionValidationError
+   *   The validation error. If no error exists for the given element ID yet, an
+   *   empty error object is returned.
+   */
+  public function getValidationError(?string $elementId): WebformSubmissionValidationError {
+    return $this->validationErrors[$elementId] ?? new WebformSubmissionValidationError([], $elementId);