                        <div class="invalid-feedback">This field cannot be blank!</div>
                            </div>
                            <span class="items-group">
                                <div class="col-sm-4 mt-3">ID:
                                    <input class="form-control" type="text" name="id" placeholder="SP01" required>
                                    <div class="valid-feedback">This field is valid!</div>
                                    <div class="invalid-feedback"