The SAP user performing the custom code extraction should be assigned with the SAP_ALL or a similar strong BASIS user authorizations.
If for any reason the SAP_ALL role cannot be assigned to the user, use the following authorizations -
Authorizations Required for Online Run
S_RFC_ADM
S_DEVELOP
Authorizations Required for Background Execution
S_DEVELOP
S_PROGRAM
S_RFC_ADM
S_TABU_DIS
S_TABU_CLI
S_XMB_MONI
S_DATASET
S_SPO_DEV
S_BTCH_ADM
S_BTCH_JOB