Logon error: RFC_ERROR_LOGON_FAILURE

Hi all,

We're having problems when the users try to logon into Portal 7.3 to Webdynpro Java apps:

"RfcException: message: Select one of the installed languages Return code: RFC_SYS_EXCEPTION(3) error group: 103 key: RFC_ERROR_LOGON_FAILURE "

The users have language "ca_ES". The same users, with the same language, have no problems to logon into Portal 7.0... and the backend R/3 system is exactly the same, as this is the same WD Java app after the migration.

Any idea? Maybe we forgot to customize something in the JCOs?

Thx!

Miguel.