Solution : https://service.sap.com/sap/support/notes/43734 (SAP Service marketplace login required)
Key words :
phase con_bas additional key words gt122, prid 0 settmst tabname auth_chk, error message 'gt122 nametab, start transaction se37, conversion process terminates, error gt122, table conversion requires, phase pcon_30y 2, phase pcon_30x, subsequent error
Related Notes :
| 60052 | Error in Upgrade Phase PCON |