SE91 Maintenance and transport messages

Hi,

Anyone knows how to work with SE91 transaction?, i´m using it to creating and display some messages, but when i transport this objects to QAS System, this shows "Message class Y_MSS_SEGURIDAD has not been maintained". The Y_MSS_SEGURIDAD is the object that i have been making to some abap developments. Anyone knows about this warning?

Thanks,

RCL.

Edited by: Ricardo Carrasco on Jan 20, 2009 6:26 PM