You can adjust previously reported sales data in the FAS Sales Reporting Portal using the Electronic Data Interchange (EDI) method. EDI is the computer-to-computer exchange of business documents in a standard electronic format between business partners. The necessary specifications to generate the monthly sales report in ‘standard electronic format’ are available on the FAS Sales Reporting portal page.
Initially, you might need to establish new business processes for EDI method and prepare the new sales report.