A FlyerTalk Posting Legend
Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 102,617
There are a few employers that forbid FC travel for business trips, even as a free FF upgrade. OP should not assume that he/she is allowed to change the ticket to FC, even if paying with personal funds.