let myURL := "";
            let myBearer := (select Einstellungen).'Bexio API-Token';
            let contact_id := Kontakt.'Bexio ID';
            let user_id := 'Projektleiter 1'.'Bexio User ID';
            let invoice_positions := for i in Projektpositionen do
                    {
                        amount: i.Anzahl,
                        unit_price: i.Verkaufspreis,
                        text: i.Artikelname,
                        type: "KbPositionCustom",
                        tax_id: number((select Einstellungen).'Bexio Tax ID'),
                        discount_in_percent: i.'Positionsrabatt Prozent'
                    }
                end;
            let zwischentotal := {
                    text: "Zwischentotal",
                    type: "KbPositionSubtotal"
                };
            let myHeaders := {
                    'content-type': "application/json",
                    Accept: "application/json",
                    Authorization: "Bearer " + myBearer
                };
            let myBody := {
                    title: Rechnungstitel,
                    contact_id: contact_id,
                    pr_project_id: 'Projektleiter 1'.'Bexio ID',
                    bank_account_id: (select Einstellungen).'Bexio Bankkonto ID',
                    mwst_is_net: true,
                    is_valid_from: format(today(), "YYYY-MM-DD"),
                    user_id: user_id,
                    positions: invoice_positions
                };
            let oauth := do as server
                    http("POST", myURL, myHeaders, formatJSON(Text))
                end;