If the receivable turns out to be non-existent or the security is non-existent, seller liable to buyer under Art. 570 or Art 575
If seller of a receivable (which is already due) warranted the debtor's solvency, it will (in the absence of a clear language) be interpreted that the seller warranted the debtor's solvency at the time of the sale of receivable, rather than at the time the receivable is collected.
If the seller's warranty of debtor's solvency is given before the receivable is due, it will (in the absence of a clear language) be interpreted that the seller warranted the debtor's solvency as of the receivable's due date.
Buyer may claim damage (in respect of the breach of warranty) from seller.