In BUSY, there isn't a specific dedicated field for LUT (Letter of Undertaking) numbers for customers or companies. However, if you need to include or reference the LUT number:
For Customers: You can specify the LUT number in the optional field of the customer account master. To enable this option, go to Administration, then Configuration, then Masters Configuration. Select the Master type as Account and set up the optional field to capture the LUT number for customers.
For Companies: If you need to mention the LUT number in invoices, you can include it in the invoice description or standard format. Access the sales invoice, configure the header options, and consider including the LUT number in the daily message field (if you intend to print it on the sales invoice).
It's important to note that LUT numbers are typically relevant for specific export transactions. Make sure to use this feature appropriately for such transactions.