(d) in the context of b2b, the contractual prohibition or limitation of the assignment of a receivable agreed upon by the parties to the original treaty of the receivable does not affect the assignment of that receivable. (a) The creditor (Zdner) may assign its claim contractually to the assignee. An assignment is not subject to any formal requirements. The assignment is effective, provided that the assignment has been notified to the debtor. (b) A claim on the payment of a sum of money may be partially assigned. A claim for a non-monetary benefit may be assigned in part only if the debtor agrees to the assignment; or that the receivable is divisible and that the assignment does not make the performance much more burdensome for the debtor. (e) A claim is non-repayable if the parties intend that only the promisor has the right to do so. Such an intention is presumed where the nature of the transaction implies personal trust between the parties or is such that the personal consideration for the contract is essential. (c) An assignment is inoperative if the assigned receivable does not exist.
A future receivable may be assigned, but the transfer of the receivable depends on its arose and can be identified as the receivable subject to the assignment. (f) A subsidiary right securing enforcement of the assigned receivable is transferred to the assignee without a new act of assignment, notwithstanding an agreement between the assignor and the debtor or another party granting that right, therefore limiting in some way the assignor`s right to assign the receivable or the right to secure payment of the assigned receivable.