I am passing below to create value under macros for one server.

$json = {
jsonrpc=> '2.0',
method => 'usermacro.create',
params =>
{
hostid => '17750',
macro => '{$MY_IP}',
value => "$interface_ip"
},
auth => "$authID",
id => 1,
};

am getting the below error. The macro value is not getting updated.
$VAR1 = {
'jsonrpc' => '2.0',
'error' =>

{ 'data' => 'No permissions to referred object or it does not exist!', 'message' => 'Application error.', 'code' => -32500 }

,
'id' => 1
};

I have the superadmin user permission to my user for zabbix and i can read the macros but while creating or updating macro am getting above error.

HOW DO I FIX THIS ISSUE.

URGENT. PLEASE SOMEONE HELP.