I would say it's more likely to be this, although it depends on the context

Comptabilite analytique is cost accounting - in UK practice - costs are allocated to cost centres which are determined by management, etc.

Yes, I KNOW this doesn't sound particularly English. But: these are specific categories based on French accounting rules with regards to cost accounting, and that are used in French invoice-accounting software. Therefore I don't really think it's worth trying to find a "native speaker" English equivalent. If you start straying too far from the French by using things like "cost accounting allocation", you're going to confuse everyone. When the French guy is sitting down with the English guy at your client company, and the English guy says he has some questions about the items under the "Analytical imputation" section, everyone will know what he's talking about. Why complicate matters? My French clients would certainly not appreciate anything other than analytical imputation for that. Especially if your client is French, just stick with that.

FCA. Term is used throughout the Anglosphere. It's how you achieve FDC (fully distributed cost) numbers. (How you use those numbers for pricing is another question altogether.)

Any worthwhile management accounting scheme must deal with *all* the costs incurred, so the 'full' qualifier often goes without saying apart from these jargon acronyms.