The forwarding rule makes the return combination but the quotation still appear to everyone

I am trying to make the salesmen to not see each others quotations and the admin can see all :

I tried these codes and I didn't work :

1st attempt:

resulstr = _system_user_login + "~" + _system_company_name + "~" + "Admin" + "|";

/* Print and return the final result */

print(resulstr);

return resulstr;

2nd attempt

resulstr = "";
profile = "";

if (_system_user_login == createdBy_t) {
profile = "Admin";
} else {
profile = "RestrictedAccess";
}

resulstr = _system_user_login + "~" + _system_company_name + "~" + profile + "|";

/* Print and return the final result */
print(resulstr);
return resulstr;

the combination appear and It's like (userlogin~companyname~profile|)

what do I do wrong and Is there anything that I need to do other than the forwarding rules