"Cannot retrieve data for this QN" is being received when adding the result in Edit PI data this will be due to the qualification not being in the performance indicators.

 

You will need to go to Tools > Examinations > Manage Performance Indicators and either 'Add New' or 'Add existing' to add in the QN. From here the points will be manually entered for the grades.

 

Then when recording the result in Edit PI data the grades and points will pull through.