Outside courses in High School

Hi, I am a rising sophomore and I am currently taking AP Macroeconomics online via APEX Learning which is a credited course. My high school offers Economics H so they say even if I take the AP class they won’t report it on my transcript or gpa. What are my options? How can I report it via the common app(I have the individual class transcript) and can I calculate it into my GPA or do I have to stick with the one my high school assigns. Thanks!

Your GPA will be the one the HS has in your transcript.