Solution : https://service.sap.com/sap/support/notes/1780629 (SAP Service marketplace login required)
Key words :
720, 720_EXT, 721, 721_EXT, 738
Related Notes :
| 1716826 | Usage of the downward compatible kernel 721 (EXT) |
| 1636252 | Installing a 7.20 kernel in SAP Web AS 7.00/7.01/7.10/7.11 |
| 1633731 | Usage of the 7.20 Downward-Compatible Kernel |
| 1553301 | 7.20 EXT Kernel - Usage |