I need to develop a detailed VAT report per vendor, I use Data Items Vat Entry and Vendor fine but I don’t know where to find the Vendor Invoice number and description related to each entry in the Vat Entry and what relation to use.
Link from VAT Entry to Posted Purchase Invoice Header / Posted Purch. Cre. Memo table is Document No. You have check the Type for field for Purchase / Sales.
IN EU the VAT is generated per document so you must link to the Purchase Header table.
As Jonathan says there isn’t a direct link to line level, however you can find the corresponding line by filtering by document no., VAT Bus. posting group and VAT Prod. Posting Group on the invoice/Cr. Memo tables.