For Actual or Simulation:
The declaration start and end dates are used to filter the accounting entries by accounting dates or by original document dates, depending on the value of the DCLVATDAT - Date for tax declaration parameter (CPT chapter, VAT group).
For Regeneration:
The dates entered are the declaration start and end dates at the source of the VAT query. These dates cannot be modified.
The declaration end date must be later than or equal to the declaration start date.
During the extraction, if the DCLVATDAT - Date for tax declaration (CPT chapter, VAT group) parameter is set to Original document and the entry has an empty original document date, the accounting date is used.