Conditionally disable DFF components in Oracle apps

A frequent requirement in most Oracle Applications implementations is to be able to conditionally disable one of the components of a Descriptive Flexfield (DFF). DFFs follow the “all or none law” for a given DFF context. If a DFF is displayed, it is enabled and can be changed. The only exception to this rule is when the entire record is read-only. However, if your DFF is using five attributes, there is no mechanism to disable one attribute out of the five attributes. Also, since the DFF window is a user exit call, you cannot disable any attribute field by using set_item_property. We’ll show you how to protect DFF using CUSTOM.pll.

Stop specific user from log in to application

Requirement:

There are over 300 users in the application. We need to stop the users to log into the application for 3 days every month except for 3 users.