Solution : https://service.sap.com/sap/support/notes/982723 (SAP Service marketplace login required)
Key words :
char data types, define key fields, correct data type, terms short string, string key fields, r3trans transport tool, r3trans transport program, downloading kernel patches, system similarly supports, version number lower
Related Notes :
| 1089083 | Transports between Basis Releases 7.0* and 7.1* |
| 454321 | Transports between Basis Release 6.* and 7.0 |
| 19466 | Downloading SAP kernel patches |