Solution : https://service.sap.com/sap/support/notes/528336 (SAP Service marketplace login required)
Key words :
system displays negative values, attached source code, signs' long text, info structure definition, info structure, short text, extended checks, transactions mc21-26, key figure, internal type
Related Notes :
| 414861 | Overflow in the LIS / No +/- sign in analysis |
| 387391 | Additional checks in LIS |