SAP Note 123770 - Loss of data after the R/3 upgrade

Component : Upgrade - general -

Solution : https://service.sap.com/sap/support/notes/123770 (SAP Service marketplace login required)

Key words :
profile parameter transport/system type, report rspusca4 writes files, respository switch procedure reverses, repository objects missing programs, source/target release combinations, protected key areas, e071-lockflag receives, special situation exists, power point shows, restrictions resulting thereof

Related Notes :

390550ABAP Dictionary objects missing after upgrade
308196Field exit cannot be found after upgrade to Rel. 4.x
216734Customer exits in function groups for upgrade
156568Data loss of T5DB4 after upgrade to 4.0
142777Upgrade 3.x -> 4.x: Customer Includes overwritten