ORDER MANAGEMENT 12.1 JAN 2014 CUMULATIVE PATCH 19018023 has been released!!
The best way to stay ahead of data and program issues is to apply the latest cumulative patches (RUPs) at your first opportunity.
You can review the current list of cumulative patches via Order Management Cumulative Patches for Releases:11.5.10, 12.0.4, and 12.1, Doc ID 453944.1.
You can also dynamically search the latest EBS recommended patches using tools that are already available to you. See Doc ID 1400757.1 How to Find E-Business Suite Recommended Patches for the three methods. By using Method 1, Patch Wizard, you can see whether the recommended patches are already applied in your instance. You can also see the changes that an un-applied patch will introduce to your instance if you applied it.