After duplicating accounts 472000 and 477000 to collect in specific accounting accounts the VAT borne and passed on in transactions for the acquisition of intra-community and extra-community services, we find the problem that in the OCA module for "AEAT Declarations" the lines 11, 13 and 37 come out with amount 0, that is, they do not include the amounts of those specific ledger accounts. However, in the menu "Reports-Tax Report (Mod 303)" they do appear correctly.