RWB
Unable to log on to system xxx in language yyy with user PIRWBUSER
After the initial setup I receive the error message “Unable to log on to system xxx in language yyy with user PIRWBUSER” in the Runtime Workbench (RWB). Why this? Answer: The logon language yyy is not activated in the ABAP system. Start transaction I18N and activate the language. Language activation is a separate post installation task that should have been executed before the CTC initial setup