If a vendor performs part of the service to the government for this micro purchase bid and does not end up meeting the full criteria, are they able to sue for p

If a vendor performs part of the service to the government for this micro purchase bid and does not end up meeting the full criteria, are they able to sue for partial recoupment of costs of delivery of the software and/or entitled to it? I can imagine this has already been sorted for commodity delivery but I'm not sure what happens when that sort of thing is applied to services. Firm Fixed Price contracts aren't usually an all-or-nothing deal, but I guess in this case the case could be made for all the risk being on the vendor side given the scale and intent.