diff --git a/cmd/checkout/pool-server.go b/cmd/checkout/pool-server.go
index a182320..4f50d1c 100644
--- a/cmd/checkout/pool-server.go
+++ b/cmd/checkout/pool-server.go
@@ -400,28 +400,30 @@ func (s *CheckoutPoolServer) GetPaymentSessionHandler(w http.ResponseWriter, r *
 	}
 	switch payment.Provider {
 	case "adyen":
-		// For Adyen, recreate the session with updated cart data
-		// The frontend uses this to reinitialize the Drop-in component
-		meta := GetCheckoutMetaFromRequest(r)
-		sessionData, err := BuildAdyenCheckoutSession(grain, meta)
-		if err != nil {
-			logger.Error("unable to build adyen session", "error", err)
-			return err
+		var payload *SessionRequest
+		if r.Method != http.MethodGet {
+			payload = &SessionRequest{}
+			if err := json.NewDecoder(r.Body).Decode(payload); err != nil {
+				return err
+			}
 		}
 		service := s.adyenClient.Checkout()
-		req := service.PaymentsApi.SessionsInput().CreateCheckoutSessionRequest(*sessionData)
-		session, _, err := service.PaymentsApi.Sessions(r.Context(), req)
+		req := service.PaymentsApi.GetResultOfPaymentSessionInput(payload.SessionId)
+		if payload != nil {
+			req = req.SessionResult(payload.SessionResult)
+		}
+		res, _, err := service.PaymentsApi.GetResultOfPaymentSession(r.Context(), req)
 		if err != nil {
-			logger.Error("unable to create adyen session", "error", err)
 			return err
 		}
-		return s.WriteResult(w, session)
+		return s.WriteResult(w, res)
 	case "klarna":
-		order, err := s.CreateOrUpdateCheckout(r, grain, &payment.PaymentId)
+		current, err := s.klarnaClient.GetOrder(r.Context(), paymentId)
 		if err != nil {
 			return err
+
 		}
-		return s.WriteResult(w, order)
+		return s.WriteResult(w, current)
 	}
 
 	return errors.New("unsupported payment provider")