Oracle Recruiting Cloud Implementation Guide for version 23A it may be proprietary and restricted to Oracle customers or partners. 

1. Log in to Oracle Support: If you can access Oracle Support, you can search for the specific guide within their documentation library.
2. Contact Oracle Directly: If you cannot find the documentation online, contact Oracle’s support team or your Oracle account representative to request the specific guide.
3. Search Oracle’s Website: Sometimes, Oracle makes specific documentation publicly available on its website. Search for the guide using keywords related to the Oracle Recruiting Cloud Implementation Guide 23A.
4. Consult with a Certified Partner: If your organization works with an Oracle partner, they may have access to this documentation and could provide assistance with your implementation.