How to configure Network ACL/ACE at Autonomous Transaction Processing Always Free

Hello,

I'm migrating now to Autonomous Transaction Processing Database from OCI-C Database.

My Database Application uses UTL_HTTP Package in PL/SQL Procedures/Functions .

Network ACE/ACL configuration is needed to kick UTL_HTTP Get/Post.

I invoked DBMS_NETWORK_ACL_ADMIN as admin user.

I faced Error PLS-00201.

It's seems admin user don't have enough permissions.

I can't connect as SYSDBA to Autonomous Transaction Processing Database.

How to configure Network ACL/ACE to use UTL_HTTP ?

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BEGIN

DBMS_NETWORK_ACL_ADMIN.APPEND_HOST_ACE(

  host       => '*.xxxxx.com',

  lower_port => '443',

  upper_port => '443',

  ace        =>  xs$ace_type(privilege_list => xs$name_list('http','connect'),