---
title: What You Need to Know About Oracle EBS 12.2 CPU - January 2023 | Official Pythian®® Blog
description: I recently applied the January 2023 released E-Business Suite Release 12.2 CPU patches following the release document 2916871.1. Below are a few
---

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# [What You Need to Know About Oracle EBS 12.2 CPU - January 2023 | Official Pythian®® Blog](https://www.pythian.com/blog/what-you-need-to-know-about-oracle-ebs-12-2-cpu-january-2023)

 Written by [Balvinder Singh](https://www.pythian.com/blog/author/balvinder-singh) | Feb 28, 2023 5:00:00 AM

I recently applied the January 2023 released E-Business Suite Release 12.2 CPU patches following the release document [2916871.1](https://support.oracle.com/epmos/faces/DocContentDisplay?id=2916871.1).

Below are a few high-level notes that might be helpful for a quick reference for anyone taking up these patches.

## E-Business Suite Release 12.2 CPU Patches – January 2023

- The January released EBS CPU patch [34726978](https://updates.oracle.com/download/34726978.html) needs AD and TXK Delta 13 updates as a prerequisite. The latest AD and TXK Delta 14 patches are available ([1617461.1](https://support.oracle.com/epmos/faces/DocContentDisplay?id=1617461.1)).
- One significant change AD Delta 13 patch delivers is the new “EBS_SYSTEM” schema. This schema is created when adgrants.sql from this patch is executed before applying the AD Delta 13 or a later patch. As AD Delta 13 was released in November 2021, enough information regarding the EBS_SYSTEM schema is generally available. However, a couple of things about it are below.
- One observed behavior change after patching is in AD Online Patching (ADOP) utility. It now prompts for the EBS_SYSTEM schema password instead of the SYSTEM password. So update any in-house patch automation or custom scripts running ADOP utility accordingly. 
- EBS_SYSTEM schema is introduced to avoid storing EBS objects in SYS or SYSTEM schemas. Review the document, Oracle EBS 12.2 System Schema Migration (Doc ID [2755875.1](https://support.oracle.com/epmos/faces/DocContentDisplay?id=2755875.1)), to know more about moving to completely use the EBS_SYSTEM schema. Until then, the EBS_SYSTEM user password has to be set to the same as the SYSTEM user.
- In the other components’ security updates for EBS, one has to take specific notes when considering Oracle Fusion Middleware 11.1.1.9 OSS – Web Tier Home patches. Refer to the known issues section, which mentions skipping the patches 32287205 and 34067016 suggested above in the same document. Patch [3130450](https://updates.oracle.com/download/3130450.html) – OSS BUNDLE PATCH 11.1.1.9.200714 is presented as an alternate.
- Also, before applying the OSS security patch, cover over the actions from document [2555355.1](https://support.oracle.com/epmos/faces/DocContentDisplay?id=2555355.1) to secure internal components communication in the EBS environment. It mentions replacing the internal default (OPMN, OHS) EBS certificates with secured self-signed certificates and updating secured protocols and ciphers in configuration files.

## **Document References:**

- Oracle E-Business Suite Release 12.2 Critical Patch Update Availability Document (January 2023) (Doc ID [2916871.1](https://support.oracle.com/epmos/faces/DocContentDisplay?id=2916871.1))
- Applying the Latest AD and TXK Release Update Packs to Oracle E-Business Suite Release 12.2 ([1617461.1](https://support.oracle.com/epmos/faces/DocContentDisplay?id=1617461.1))
- Oracle E-Business Suite Applications DBA and Technology Stack Release Notes for R12.AD.C.Delta.13 and R12.TXK.C.Delta.13 (Doc ID [2758994.1](https://support.oracle.com/epmos/faces/DocContentDisplay?id=2758994.1))
- Oracle E-Business Suite Release 12.2 System Schema Migration (Doc ID [2755875.1](https://support.oracle.com/epmos/faces/DocContentDisplay?id=2755875.1))
- Prerequisite Steps to Configure Oracle Fusion Middleware 11.1.1.9 Components for Oracle E-Business Suite Release 12.2 Before Applying July 2019 or Later FMW OSS Security Patch (Doc ID [2555355.1](https://support.oracle.com/epmos/faces/DocContentDisplay?id=2555355.1))

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