There is a position missing in the Timekeeping system mapping. How can I fix this?

Each department and position can only be mapped to one place. If you need to split a position or shift, you need to do this in your Timekeeping system. If you want the split to appear in PMI only, you can use Schedule to make a shift code that deducts hours from one department and adds them in another. There are other ways of manually moving hours in PMI, but this will require additional daily work.