Solution : https://service.sap.com/sap/support/notes/199405 (SAP Service marketplace login required)
Key words :
import parameter reference field reference type proposal optionalf_j_3aabgru vbep-j_3aabgru ' ' xsave, -object 'interface import/export parameter', additional key words j_3atvak_v-j_3ahnwete, tools --> abap/4 workbench -->function builder, vbep-j_3aabgru, import parameter, modified function module, function module 'rv_xvbfa_maintain', referenced schedule line, attached advance correction
Related Notes :
| 215531 | Check report for the AFS document flow |