Thanks for the quick responses!
corporate-wage-slave I just double checked and it does indeed look like J. 8 letters/numbers starting with JF..... I hope you are right that signing up for TAP's FFP does not preclude A3 crediting and that I get to retro credit this!
romans J being lowest biz class would be consistent with the price I paid (EUR 500ish for FRA-LIS-FRA, with economy not much cheaper for those dates).
irishguy28 /
corporate-wage-slave Just double checked my TAP account and the flights (thankfully?) aren't credited there either. My A3 number is also on both boarding passes.