diff --git a/pms_api_rest/datamodels/pms_folio_sale_line.py b/pms_api_rest/datamodels/pms_folio_sale_line.py
index 1d567716d..1759f51f8 100644
--- a/pms_api_rest/datamodels/pms_folio_sale_line.py
+++ b/pms_api_rest/datamodels/pms_folio_sale_line.py
@@ -17,3 +17,4 @@ class PmsFolioSaleInfo(Datamodel):
     serviceId = fields.Integer(required=False, allow_none=True)
     displayType = fields.String(required=False, allow_none=True)
     defaultInvoiceTo = fields.Integer(required=False, allow_none=True)
+    isDownPayment = fields.Boolean(required=False, allow_none=True)
diff --git a/pms_api_rest/services/pms_folio_service.py b/pms_api_rest/services/pms_folio_service.py
index 18d411d5e..7b278b3ac 100644
--- a/pms_api_rest/services/pms_folio_service.py
+++ b/pms_api_rest/services/pms_folio_service.py
@@ -518,6 +518,7 @@ class PmsFolioService(Component):
                             defaultInvoiceTo=sale_line.default_invoice_to
                             if sale_line.default_invoice_to
                             else None,
+                            isDownPayment=sale_line.is_down_payment,
                         )
                     )
 
diff --git a/pms_api_rest/services/pms_invoice_service.py b/pms_api_rest/services/pms_invoice_service.py
index 6232f5d66..6d6ca7aae 100644
--- a/pms_api_rest/services/pms_invoice_service.py
+++ b/pms_api_rest/services/pms_invoice_service.py
@@ -130,7 +130,9 @@ class PmsInvoiceService(Component):
         if pms_invoice_info.originDownPaymentId:
             if not pms_invoice_info.partnerId:
                 raise UserError(_("For manual invoice, partner is required"))
-            payment = self.env["account.payment"].browse(pms_invoice_info.paymentId)
+            payment = self.env["account.payment"].browse(
+                pms_invoice_info.originDownPaymentId
+            )
             self.env["account.payment"]._create_downpayment_invoice(
                 payment=payment,
                 partner_id=pms_invoice_info.partnerId,