Solution : https://service.sap.com/sap/support/notes/994195 (SAP Service marketplace login required)
Key words : 
documentation       vi language support change history date      chapter              short text=======================================================================jul/10/2007  ii preparations    check access sequencejul/10/2007  iv postprocessing   deleting, distribution --> basic functions --> pricing --> pricing control --> define access sequences --> maintain access sequences, component upgrade guidesep/18/2008  ii preparations     reference, install      iii upgrade      iv postprocessing, vi language support, resetting                                  access sequencesjune/19/2008  ii preparing, install current support packagesas part, iv postprocessing depending, check access sequences, iii upgrade upgrade phase activation
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| 1252426 | |
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| 882098 | IS-REA: Composite note for the Add-on IS-REA | 
| 822380 | Problems w/ add-on inst/upgrade to SAP NW 7.0 AS ABAP | 
| 822379 | Known problems with Support Packages in SAP NW 7.0x AS ABAP | 
| 632429 | ADD-ON: Composite SAP note for upgrading or updating | 
| 598431 | IS-REA: Frequently asked questions (FAQ) | 
| 505700 | LBWE: New update methods as of PI 2002.1 | 
| 414138 | |
| 70228 | Add-ons: Conditions and upgrade planning | 
| 2050 | R3trans: data file destroyed |