I entered employee business deductions but in the end did not itemize on my federal return. But they are still deductible in PA, and did not transfer. What do I do?

My best advice is to enter them again.  PA law is not the same for unreimbursed business expenses as federal, so they may not have transferred.

See https://www.revenue.pa.gov/FormsandPublications/FormsforIndividuals/PIT/Documents/rev-637.pdf for allowable expenses.