Start the transaction using the menu path or transaction code 

Choose a defined selection variant 

Click on  beside the field "selection variant"

Look for the variant and click on it 

1. Enter the settlement period 
2. Enter the fiscal year
3. A test run can be made before, in order to check for possible errors.

4. Mark (optional) ‘ Detail list ‘
   
   

   Execute 

1. Check to see if there are error messages
2. Click on  to display messages

For messages with a red circle , it usually means the settlement rule is missing in the WBS. 

Once all error messages are cleared, re-open transaction CJ8G and uncheck the test mode

and execute 

To view the detailed list of settlements click on