Not able to Debug custom planning function

Hello All,

I have created a custom planning function by copying the Revaluation planning function.

I have also copied the Class for the same to Z Class and have not changed anything in the class.

Now when I am using the same in a planning function the Class method for execution i understand in the execute method the parameter C_TH_DATA is where all the data with refernce to filter will be available. But for some reason this execute method is never triggered. I have set break point in this method but it never gets triggered.

I want to write some custom code here and based on some logic modify the data.

Please advise

Regards

Rohan