Ultimately it is up to the auditors. They routinely force their clients to scrap homebrew systems that work in favor of name-brand ERP that does not work, but

Ultimately it is up to the auditors. They routinely force their clients to scrap homebrew systems that work in favor of name-brand ERP that does not work, but on which the auditors' people have been trained. If they say: gold bits or we won't sign, then gold bits it will be.