You can, but it's all about risk mitigation. Most processors have some form of store and forward (and it can have limitations like only X number of transactions). Some even have controls to limit the amount you can store-and-forward (for instance, only charges under $50). But ultimately, it's still risk mitigation. You can store-and-forward, but you're trusting that the card/account has the funds. If it doesn't, you loose and ain't shit you can do about it. If you can't tolerate any risk, you don't turn on store and forward systems and then you can't process cards offline.

Its not the we are not capable. Its, is the business willing to assume the risk?