Yes. The final grade is based on the UMS marks from all units, and a 0 or a low mark in one unit, while reducing their potential to get the top grades, they can still get an overall pass grade.
All marks gained contribute to the overall qualification even if the unit grade is unclassified (U).
A candidate achieving a minimum of 36 or 72 marks across the units is eligible for a Level 1 Award or a Level 1 Certificate respectively.
A candidate achieving a minimum of 72 or 144 marks across the units is eligible for a Level 2 Award or a Level 2 Certificate respectively.