Explanation
These are some of the authorization objects that we need to create job steps with external commands in a background job. A background job is a process that runs in the background without user interaction and performs tasks such as data processing or report generation. A job step is a unit of work within a background job that executes a program or an external command. S_BTCH_EXT is an authorization object that controls the execution of external commands or programs in a job step. S_BTCH_ADM is an authorization object that controls the administration of background jobs, such as creating, changing, or deleting jobs. References:
https://help.sap.com/doc/saphelp_nw73ehp1/7.31.19/en-US/c8/e8d53d35fb11d182b90000e829fbfe/content.htm?