Terrasky Co., Ltd. (Head Office: Chuo-ku, Tokyo; Representative Director, CEO, President and Executive Officer: Hideya Sato, hereinafter Terrasky) announced that on Tuesday, June 30, 2026, they have updated the cloud-based expense settlement application 'mitoco Work Expense,' which runs on the Salesforce platform, to Ver. 2.6. This update introduces functional improvements to enhance user convenience and efficiency. New features have been added to prevent errors during expense settlement, such as a function to check qualified invoice issuer numbers entered during expense settlement against National Tax Agency data, and a function to check for duplicate registered receipts. Key update details are as follows: ■ Added Qualified Invoice Issuer Number Check Function A function has been added to check the qualified invoice issuer number (invoice registration number) entered in expense details by utilizing the National Tax Agency's public API. If a number not registered with the National Tax Agency is entered, a warning icon will be displayed next to the relevant business number, making it easier to notice the inclusion of invalid business numbers. Expense Details Screen (Attached File Field) File Information Input Dialog / File Preview Screen Closing Processing Screen (Details List / Edit Dialog) ■ Added Duplicate Receipt Usage Check Function A function has been added to check if the same receipt has been used for multiple expense details. This function detects receipts where the 'Date, Payer, Amount, and Qualified Invoice Issuer Number (hereinafter, Business Number)' match those of receipts previously attached to expense details, and displays an alert to both the applicant and the accounting staff. This feature is only available to customers who have subscribed to the Electronic Book Preservation Law Compliance Option. ■ Alert Display for Potentially Duplicate Receipts When attaching a file to expense details, the system automatically determines if the receipt may have b