I suppose it can be done in different ways. This is an example, starting from the transaction (but you can also query directly from the mentioned tables): query purchase_order_line( $cid : Int!, $filter :FilterExpression_GeneralLedgerTransaction) { useCompany(no : $cid) { generalLedgerTransaction(filter : $filter) { items { voucherJournalNo auditNo incomingAccountingDocumentNo joinup_IncomingAccountingDocument { incomingAccountingDocumentNo incomingAccountingDocumentType joindown_IncomingAccountingDocumentAttachment_via_IncomingAccountingDocument { items { attachmentNo attachmentType fileNo fileName fileData } } } } } } }   ... Meer weergeven