An action submitted via a network may be fulfilled despite the network, or a website accessible via the network, experiencing an error that prevents processing of the action when the action is received. In one example, the user that submitted the action may receive a confirmation page indicating that the action has been received. Transaction data may be retrieved based at least in part on the action and/or the user that submitted the action. Once the transaction data is stored in a queue, the transaction data may be processed either automatically or manually. Subsequently, the action may be fulfilled without the user needing to resubmit the action. Alternatively, the action may be optimistically fulfilled prior to the action being processed.