Field help (VLYSTRHEA) 

For reprinting and tracking changes, enter the Validity start date and Validity end date for the current box.

These date ranges can only be accessed for Title and Total VAT box types.

The Validity end date must be greater than the Validity start date. Dates are not mandatory.

Title or Total VAT box types are only taken into account if all or part of their validity period is included within the date range indicated when the Belgian or French VAT declaration is run.

This control is enforced differently according to the kind of VAT function that is run.

When the Belgian VAT or French VAT On debit is run, these validity dates are checked against the starting declaration date and the ending declaration date indicated in the process.

When the French VAT On payment is run, these validity dates are checked against the Due date until value: A box is valid and usable if its start date and end date include this Due date.

For Detail and Off declaration VAT box types, the Validity start and end dates are entered directly on the Detail tab.