Please provide the output of the following query:
where user_name = 'CONVERSION';
02-SEP-11 1877 09-SEP-99 1024 785134
Conversion User Name
What are the column headings of the results?
I know you chose a few columns from the fnd_user but I need to know which value is for which column!
Check the last_logon_date column from fnd_user table for that user.
Normally a user 'CONVERSION' will be created for the purpose of converting/migrating data from the legacy system.
Mostly during the Go-Live activities.
If that is the case its should be ok to put an end-date for that user.
Hope it helps.