Metropolia's Admission Services is responsible for the Open Path Application process.
Check the current application instructions and contact info from the "How to apply?" pages.
If you are chosen as a degree student to Metropolia, you may seek identification and recognition of Open UAS courses (RPL, AHOT in Finnish) into your degree. Recognition is always decided by the receiving UAS.
There is no direct RPL in Open UAS. That's used only for degree students. More info, see Studying in open university > Evaluation of Studies