Solution : https://service.sap.com/sap/support/notes/39311 (SAP Service marketplace login required)
Key words : 
capital investment program positions, abap/4 runtime errors occur, additional key words oit2, prerequisites program error solution, misleading error message, change edit screens, delete edit screens, edit screens, edit screen, eap13source code
Related Notes : 
       
| 80057 | IM: Program position creation -> ASSIGN_LENGTH_0 | 
| 48103 | IM: Error AP130/AP131 when deleting edit screen | 
| 48064 | Cap.invstmt progs:edit screen cannot be deleted | 
| 43723 | Unjustified AP019: length of entry is not correct | 
| 40357 | CIP: Error AP024 when creating edit mask | 
| 39321 | Capital inv. prog.: Runtime error or EAP019/20/21/22 | 
| 26393 | IM: Maintaining coding masks not possible OR ... |