Hello, as I know, in Sage X3, the header text for invoices is typically stored in the "Header Text" field of the relevant tables. However, once an invoice has been posted, modifying the header text directly in the tables may not be the recommended approach, as it can have implications for data integrity and auditing.

Hello, as I know, in Sage X3, the header text for invoices is typically stored in the "Header Text" field of the relevant tables. However, once an invoice has been posted, modifying the header text directly in the tables may not be the recommended approach, as it can have implications for data integrity and auditing.