Solution : https://service.sap.com/sap/support/notes/1437750 (SAP Service marketplace login required)
Key words : 
copy client-dependent customizing data, /tdag/rcs_plcl_11_02 sap product, /tdag/rcs_plcl_20_00 sap product, installed sap reach compliance 1, prerequisite sap notes, component piece list, latest patch level, fr sap product, de sap product, hu sap product
Related Notes : 
       
| 1389562 | SAP PRC 2.0: Installation and upgrade for ERP 2004 | 
| 1389561 | SAP PRC 2.0: Installation and upgrade for ERP 6.0 | 
| 1173322 | SAP REACH Compliance 1.1 installation on SAP ECC 500 | 
| 1173321 | SAP REACH Compliance 1.1 installation on SAP ECC 600 | 
| 1156507 | Language supplementation, RSREFILL and client maintenance | 
| 1000586 | How to analyze missing translations / missing texts | 
| 73606 | Supported Languages and Code Pages | 
| 48047 | Mode of operation of report RSREFILL | 
| 43853 | Consulting: Language-dependent + client-specific C-tables |