I am a holder of a third-country pilot license and would like to convert to a Norwegian EASA Part FCL license. How do I proceed?

You shall comply with Commission Delegated Regulation (EU) 2020/723.

It is possible to convert your third-country licence into a PPL licence. You may get credit for CPL, CPL/IR and ATPL and IR ratings, and the amount of training needed will depend on your previous experience. You will find more information regarding requirements and procedures under each license category.