In the Benefit Application Materials, the Customer Acceptance Report Requires the Customer to Confirm the Acceptance of the Content Specified in the Proposal/SOW. What Is the Effective Confirmation Method?

The proof for the service project completion confirmation from the customer can be a written confirmation letter with customer's official seal or the seal of the customer's department or an official email sent from the customer contact. (The customer can sign the confirmation letter and send the scanned copy via email.)