seller_code;seller_name;note FIRMA_A;Firma A; FIRMA_B;Firma B;
so_doc_no;seller_code FV/1/2026;FIRMA_A FV/2/2026;FIRMA_B
field;pattern;seller_code doc_no;^FV/;FIRMA_A source;^(SUBIEKT|BASE)$;FIRMA_B buyer_email;@twoj-sklep\.pl$;FIRMA_A