local $SIG{QUIT} = 'IGNORE';
local $SIG{TERM} = 'IGNORE';
local $SIG{TSTP} = 'IGNORE';
local $SIG{QUIT} = 'IGNORE';
local $SIG{TERM} = 'IGNORE';
local $SIG{TSTP} = 'IGNORE';
$error = $new_cust_bill->replace($old_cust_bill);
return "Error modifying cust_bill: $error" if $error;
$error = $new_cust_bill->replace($old_cust_bill);
return "Error modifying cust_bill: $error" if $error;