Reagarding table maintenance generator

hi abapers,

my problem iam unable to creater table maintenance generator for my ztable

i careted ztable ,then i go for table maintenance generator give the authorization group&nc&

my function group zXX.package .two step screen no's.no recording routinee

i go se93 ->parmeter transaction ,in tcode-sm30,in bootom screen viewname = ztable

update = x.

but iam gtting messge

'The maintenance dialog for ZLOCATION is incom

or not defined'.