Solution : https://service.sap.com/sap/support/notes/840040 (SAP Service marketplace login required)
Key words :
terms bp_td bp_dialog but021 but021_fs reason, standard usage indicators but021-xdfadu, full time dependency, table but021_fs occurs, table but021, table but021_fs, address usages, business partner, aba release 6, module bua_address_xpra_td