1. First of all, both parties need to clearly stipulate the terms of invoice provision in the entrusted payment contract, including specific requirements such as invoice type, quantity and amount.

2. Secondly, according to the requirements of the entrusted payment contract, the borrower issues invoices that meet the requirements and provides them to the third-party payee. Ensure that the contents of the invoice are accurate, including the invoice header, amount, details of goods or services, etc.

3. Then, both parties need to clarify the authentication method and process of invoices to ensure that invoices are true and legal and consistent with entrusted payment.

4. Finally, the borrower shall deliver the invoice to the third-party payee in the agreed way, ensure that the third-party payee has received the invoice, and confirm and track it in time to avoid delay or omission.