List File Metas
Before we attempt to retrieve the attached stage to the customeritem row, let us list all file metas added to that row. You can list files attached to any row by using the row's attachment key. You will find the _ak in the response of a save or list operation. e.g. /lgc/service/file/metalist/customeritem/62d257af86b992f81f41b25a8faf860e