Solution : https://service.sap.com/sap/support/notes/386171 (SAP Service marketplace login required)
Key words :
additional key words fkkvk, fi-ca event 1017, customer-specific fields, structure isu_acc_ci abap/4, direct input, default values, contract account, ci_fkkvk ci_fkkvkp, program error, solution import
Related Notes :
152498 | Move-in and move-out: Prepopulating fields and checks |