Yes. You can order from several suppliers in one checkout and pay Ordentic in one transaction.
In your Shopping Cart, items are grouped by supplier. You can change the supplier on a line (Change supplier) or leave the choice open (Any supplier). Price Optimization finds a strong combination of suppliers for you, with options such as Cheapest and Fewest deliveries (amounts excluding VAT). You can apply a suggestion, ignore it, or lock suppliers yourself.
After you pay, you get one order with a section per supplier. Each supplier ships their part and uploads their own invoice. You see those under Invoices on the order.