Is there only SMS notification for the installment transfer of creditor's rights?

The assignment of creditor's rights, also known as "assignment of creditor's rights", refers to the contract assignment without changing the contract content, and the creditor assigns all or part of the creditor's rights to a third party through a contract signed by a third party. All the creditor's rights are transferred to a third party, and the third party replaces the original creditor to become a new creditor in the original contractual relationship. The creditor of the original contract lost his creditor's rights due to the transfer of the contract, and part of his creditor's rights were transferred to a third person, who became a creditor of the original contract and became a new creditor. The creditor's rights relationship in the contract is changed from one person to several people. The creditor who newly joined the contract enjoys the creditor's rights together with the original creditor, and enjoys the joint creditor's rights.

Article 79 of People's Republic of China (PRC) Contract Law stipulates that a creditor may assign all or part of his contractual rights to a third party.