doc.put(indexFieldTimestamp, now);
            }
            AdminSearchlistAction.validateFields(doc, this::throwValidationErrorApi);
            final Map<String, Object> newDoc = fessConfig.convertToStorableDoc(doc);
            newDoc.put(indexFieldId, crawlingInfoHelper.generateId(newDoc));
            newDoc.put(indexFieldDocId, systemHelper.generateDocId(newDoc));