SAP explained this in Note 1422099 - Italy - Intrastat Service declaration at point 2, which is actually on your list:
you can maintain the fields in VEFU transaction manually or you fill those fields via an user-exit
SAP explained this in Note 1422099 - Italy - Intrastat Service declaration at point 2, which is actually on your list:
you can maintain the fields in VEFU transaction manually or you fill those fields via an user-exit