1. All the creditor's rights are transferred to a third party, and the third party becomes a new creditor in the original contractual relationship instead of the original creditor. The creditor of the original contract lost his contractual creditor's rights due to the transfer of the contract.
2. Part of the creditor's rights are transferred to a third party, and the third party becomes a contractual creditor to join the original contractual relationship and become a new creditor. The creditor's rights relationship in the contract is changed from one person to several people.
3. The creditor who newly joined the contract shares the creditor's rights with the original creditor and enjoys joint and several creditor's rights. Legal basis: Article 546 of the Civil Code of People's Republic of China (PRC). If the creditor transfers the creditor's rights without notifying the debtor, the transfer shall not be effective for the debtor. The notice of assignment of creditor's rights shall not be revoked, except with the consent of the transferee.