Solution : https://service.sap.com/sap/support/notes/841938 (SAP Service marketplace login required)
Key words : 
remaining sap synchronisation records manually, patch level 63<=pl<=69 solution ensure, sap software download center, sap buffer synchronisation problems, ibm db2 udb reason, existing patch levels 63<=pl<=69, 'ibm db2 udb, terms buffer synchronisation, sap system instances, patch level 63<=pl<=69
Related Notes : 
       
| 782140 | OCS: Known problems with Support Packages in Basis Rel. 6.20 | 
| 749911 | DB: Synchronization for DB2 family platforms is based on UTC | 
| 672652 | Known problems in transaction SAINT in Basis Release 6.40 | 
| 672651 | OCS: Known problems with Support Packages in Basis Rel.6.40 | 
| 484219 | Known problems in transaction SAINT in Basis Release 6.20 | 
| 415555 | Known problems with transaction SAINT in Basis Release 6.10 | 
| 400280 | OCS: Known problems with Support Pkgs in Basis Release 6.10 | 
| 36283 | Buffer synchronization |