Solution : https://service.sap.com/sap/support/notes/984268 (SAP Service marketplace login required)
Key words :
exporting parameter et_bp1012 type bp1012_tty, function modules /ba1/fsbp/ots_xxx_get, function module /ba1/fsbp_ots_bp1012_get, /ba1/fsbp/ots_but050_get, /ba1/fsbp/ots_but051_get, /ba1/fsbp/ots_but052_get, /ba1/fsbp/ots_but053_get, /ba1/fsbp/ots_bp1012_get, existing function modules, upper function modules
Related Notes :
1085874 | Performance in International Financial Reporting Standards |
1085873 | Performance in BaselII Capital Accord |