The transaction record in the WeChat merchant number cannot be modified directly. This is because the transaction records are generated by the system and are fixed and cannot be tampered with, so as to ensure the authenticity and traceability of the transaction. Modifying transaction records may cause trust problems, lead to users' distrust of merchants, and also undermine the integrity and reliability of transaction data.

The transaction record of merchant number is very important to both merchants and users. They record the detailed information and process of the transaction and provide transaction vouchers and evidence. Merchants can conduct reconciliation and tax returns through transaction records, and users can query consumption history and rights protection through transaction records. If the transaction records can be modified at will, it will bring many adverse effects to businesses and users, such as false transactions, fraud, dispute resolution and so on.

Therefore, in order to ensure the fairness and trust of the transaction, the transaction record of WeChat merchant number cannot be modified. Merchants and users should be vigilant to ensure the authenticity and security of transactions and avoid any unnecessary disputes. At the same time, merchants should establish a good transaction management and recording system, so as to conduct reconciliation and query transaction information in time and ensure the accuracy and reliability of transactions.