<p>^Thanks for the exchange of PM. </p>
<p>Harvard is idiosyncratic and the situation you bring up has to do with the university’s internal treatment of the Extension School (as second-class). For courses where, through the Extension School, one can enroll in a class also listed in the undergraduate course catalog, I don’t think those enrolling through the extension school would receive credit if they later matriculated at Harvard College, and possibly not at any of the other schools either. </p>
<p>Other schools, and state universities in particular, may not care so much what a student’s affiliation was when taking courses before full-time matriculation.</p>