Hello HDB here is the sub routine that is the second sub menu that calls the third sub menu:

sub manifest {

if ( !Exists( $mm ) ) {
my $mm = $mw->Toplevel();
$mm->group($mw);
$mm->resizable(0,0);

my $mmframe2  = $mm->Frame()->pack( -side => 'right', -fill => 'both',
+ -anchor, 'e');
my $mmframe   = $mm->Frame()->pack( -side => 'left',  -fill => 'both',
+ -anchor, 'w');

$mm->geometry('400x125+0+0');
$mm->title( "Manifest Management Menu" );
my $mmbtn1  = $mmframe->Button(  -text, 'Add A Manifest', -command => 
+sub { &addmanifest; $mm->iconify;})->grid(     -row, 0, -column, 0, -
+sticky => 'nsew');
$balloon->attach($mmbtn1, -balloonmsg => "Add A Manifest");
my $mmbtn2  = $mmframe->Button(  -text, 'Edit A Manifest', -command =>
+ sub { &editmanifest; $mm->iconify;})->grid(    -row, 1, -column, 0, 
+-sticky => 'nsew');
$balloon->attach($mmbtn2, -balloonmsg => "Edit A Manifest");
my $mmbtn3  = $mmframe->Button(  -text, 'Delete A Manifest', -command 
+=> sub { &deletemanifest; $mm->iconify;})->grid(  -row, 2, -column, 0
+, -sticky => 'nsew');
$balloon->attach($mmbtn3, -balloonmsg => "Delete A Manifest");
my $mmbtn4  = $mmframe->Button(  -text, 'View All Manifests', -command
+ => sub { &viewallmanifests; $tmm->iconify;})->grid( -row, 3, -column
+, 0, -sticky => 'nsew');
$balloon->attach($mmbtn4, -balloonmsg => "View All Manifests");
my $mmbtn5  = $mmframe2->Button(  -text, 'View Manifests By Name', -co
+mmand => sub { &viewmanifestbyname; $mm->iconify;})->grid( -row, 0, -
+column, 3, -sticky => 'nsew');
$balloon->attach($mmbtn5, -balloonmsg => "View Manifests By Name");
my $mmbtn6  = $mmframe2->Button( -text, 'Total Manifest Count', -comma
+nd => sub { &totalmanifestcount; $mm->iconify;})->grid( -row, 1, -col
+umn, 3, -sticky => 'nsew');
$balloon->attach($mmbtn6, -balloonmsg => "Total Manifest Count");
my $mmbtn7  = $mmframe2->Button( -text, 'Return To Ops Menu', -command
+ => sub { $mm->withdraw; $opsm->deiconify;})->grid( -row, 2, -column,
+ 3, -sticky => 'nsew');
$balloon->attach($mmbtn7, -balloonmsg => "Return To Ops Menu");
} else {
$mm->deiconify();
$mm->raise();
}

} # END MANIFEST MENU
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And where do you declare and assign some value to variable $opsm?

Hello HDB, $opsm is defined in the code below however the Add Manifest menu does not return to the Ops menu it needs to return to the Manifest Menu:

sub opsmgt {

if ( !Exists( $opsm ) ) {
$opsm = $mw->Toplevel();
$opsm->resizable(0,0);

my $opsmframe2  = $opsm->Frame()->pack( -side => 'right', -fill => 'bo
+th', -anchor, 'e');
my $opsmframe   = $opsm->Frame()->pack( -side => 'left',  -fill => 'bo
+th', -anchor, 'w');

$opsm->geometry('400x125+0+0');
$opsm->title( "Operations Management Menu" );
my $opsmbtn1  = $opsmframe->Button(  -text, 'List Creator', -command =
+> sub { &listcreator; $opsm->iconify;})->grid(     -row, 0, -column, 
+0, -sticky => 'nsew');
$balloon->attach($opsmbtn1, -balloonmsg => "List Creator");
my $opsmbtn2  = $opsmframe->Button(  -text, 'Waybill Generator', -comm
+and => sub { &waybillgenerator; $opsm->iconify;})->grid(    -row, 1, 
+-column, 0, -sticky => 'nsew');
$balloon->attach($opsmbtn2, -balloonmsg => "Waybill Generator");
my $opsmbtn3  = $opsmframe->Button(  -text, 'Material Order Creator', 
+-command => sub { &materialordercreator; $opsm->iconify;})->grid(  -r
+ow, 2, -column, 0, -sticky => 'nsew');
$balloon->attach($opsmbtn3, -balloonmsg => "Material Order Creator");
my $opsmbtn4  = $opsmframe->Button(  -text, 'Truck Scheduler', -comman
+d => sub { &truckscheduler; $opsm->iconify;})->grid( -row, 3, -column
+, 0, -sticky => 'nsew');
$balloon->attach($opsmbtn4, -balloonmsg => "Truck Scheduler");
my $opsmbtn5  = $opsmframe2->Button(  -text, 'Trailer Manifest', -comm
+and => sub { &manifest; $opsm->iconify;})->grid( -row, 0, -column, 3,
+ -sticky => 'nsew');
$balloon->attach($opsmbtn5, -balloonmsg => "Trailer Manifest");
my $opsmbtn6  = $opsmframe2->Button( -text, 'Routes', -command => sub 
+{ &routes; $opsm->iconify;})->grid( -row, 1, -column, 3, -sticky => '
+nsew');
$balloon->attach($opsmbtn6, -balloonmsg => "Routes");
my $opsmbtn7  = $opsmframe2->Button( -text, 'Truck Hostler')->grid( -r
+ow, 2, -column, 3, -sticky => 'nsew');
$balloon->attach($opsmbtn7, -balloonmsg => "Truck Hostler");
my $opsmbtn8  = $opsmframe2->Button( -text, 'Return To Main Menu', -co
+mmand => sub { $opsm->withdraw; $mw->deiconify;
$btn7->configure(-state=>'normal'), $btn10->configure(-state=>'normal'
+) ;})->grid( -row, 3, -column, 3, -sticky => 'nsew');
$balloon->attach($opsmbtn8, -balloonmsg => "Return To Main Menu");
} else {
$opsm->deiconify();
$opsm->raise();
}
} # END OPERATIONS
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