User Hooks in Oracle

User hooks provide the client with the ability to add logic to application processing and to disable optional product processing. These User Hooks take the form of procedures that may be called by the application, in sequence, when the application takes a specified action on a specified object type.

Not all the Oracle Applications API's have user hooks. The API's which have users hooks are listed in the following table

jtf_user_hooks.

So if you are looking to modify/customize a particular API, look for the that API in the the above table.

For example,

select * from jtf_user_hooks where API_NAME = 'CANCEL_ORDER'

Just like triggers, User Hooks can be made to fire pre/post. In order to set a user hook as active , the execute flag has to be set to 'Y'.