Solution : https://service.sap.com/sap/support/notes/115674 (SAP Service marketplace login required)
Key words :
system displays empty characteristic values, additional key words transaction, ls_quota index sy-tabix, system displays message vq229, characterisitic read table us_quota, user-defined information structures, user exit userexit_quota_key_value, user exit dependent, sample source code, key fieldname = <characteristic_name>
Related Notes :
| 106611 | Allocations: Composite SAP Note from Release 4.0A |
| 83245 | Product allocations: collective note |