Solution : https://service.sap.com/sap/support/notes/394359 (SAP Service marketplace login required)
Key words :
additional key words support package, import aba support package 15, delete function modules bua_but020_select_with_partner, function modules bua_but020_select_with_partner, existing function group, function group bua1, function group bupa_select, support package 15, support package 18, function bua_but020_select_with_partner
Related Notes :
437600 | |
437580 | |
199619 | Function module does not fit in function group |