BOPF (Business Object Processing Framework) is a framework that is used in SAP S/4HANA to model business objects and their associated behavior. Fiori Smart Filter App is a standard SAP Fiori application that provides filtering capabilities for analytical data. You can use BOPF in conjunction with the Fiori Smart Filter App to provide a more robust filtering experience for users.

To use BOPF in S/4HANA with the Fiori Smart Filter App, you will first need to create a business object model using the BOPF framework. This model will define the attributes and behavior of the business object, as well as any relationships it has with other objects. Once the business object model is created, you can use it to create a Fiori Smart Filter App.

To create the Fiori Smart Filter App, you will need to use the SAP Web IDE or another development tool to create a new project. From there, you can add the Smart Filter App template and configure it to use the BOPF model you created earlier. This will allow you to provide more advanced filtering capabilities for users, such as filtering by related objects and complex attribute values.

Overall, using BOPF in S/4HANA with the Fiori Smart Filter App can help to provide a more comprehensive and user-friendly filtering experience for users. This can lead to increased productivity, improved data quality, and better decision-making capabilities.