Solution : https://service.sap.com/sap/support/notes/427681 (SAP Service marketplace login required)
Key words :
message 1b880 transaction se91 message class 1b message 880 select change select message 181 button individual maintenance, prerequisites function module open_fi_perform_00011020_e calls, customer-specific function module, customer-specific function module &1, additional key words bte, business transaction events, export parameter e_return, attached source code, bte 11020 account creation, account creation
Related Notes :
| 180811 | IS-B BCA: Error query w/ customer function modules |