Solution : https://service.sap.com/sap/support/notes/537174 (SAP Service marketplace login required)
Key words : 
olap bapi reason, longer work correctly, <50 digit technical key>, 0a support package 11, 0b support package 04, incorrect structure processing, support package levels, handle structures differently, support package, ran correctly
Related Notes : 
       
| 524827 | Advance information for BW 3.0A front-end patch 10 | 
| 496990 | BW 3.0B Front-end Patch 3 | 
| 197460 | BW Frontend Checktool sapbexc.xla |