http://docs.oracle.com/cloud/latest/scmcs_gs/FAIMS/FAIMS1796462.htm#FAIMS2605728

The IMPLIES keyword is used to create a configurator rule that specifies a logical implication between two expressions. The syntax of the IMPLIES keyword is:
expression1 IMPLIES expression2
This means that if expression1 is true, then expression2 must also be true.However, if expression1 is false, then expression2 can be either true or false1. In the Configurator runtime UI, the IMPLIES keyword can be used to show or hide options based on the selection of features. For example, the following rule:
'LX-Luxury Package' IMPLIES '8-way Power Driver Seat'
means that if the LX-Luxury Package feature is selected, then the 8-way Power Driver Seat option must also be selected. However, if the LX-Luxury Package feature is not selected, then the 8-way Power Driver Seat option can be either selected or not selected.
Therefore, when the LX-Luxury Package option is selected, all the options after the IMPLIES keyword will be selected, according to the constraint rules. This means that the 8-way Power Driver Seat, the 8-way Power Passenger Seat, and the Cloth options will be selected.
References:
* How to Use the IMPLIES Keyword

Extensible Flexfield attributes are custom attributes that you can add to Order Management entities to capture additional information that is specific to your business needs. You can use these attributes in approval rules for sales orders to define conditions and actions based on the values of the attributes. The order entities that support the use of Extensible Flexfield attributes in approval rules for sales orders are Header, Line, and Fulfillment Line. These entities have predefined Extensible Flexfield categories that you can configure and deploy in the Setup and Maintenance work area. You can also access and update these attributes in the Order Management work area.
References:
* Overview of Using Extensible Flexfields in Order Management
* Set Up Extensible Flexfields in Order Management
* Oracle Order Management Cloud - Extensions