diff --git a/Marco.Pms.Services/Service/PurchaseInvoiceService.cs b/Marco.Pms.Services/Service/PurchaseInvoiceService.cs
index 6e138b0..f973b75 100644
--- a/Marco.Pms.Services/Service/PurchaseInvoiceService.cs
+++ b/Marco.Pms.Services/Service/PurchaseInvoiceService.cs
@@ -1535,8 +1535,8 @@ namespace Marco.Pms.Services.Service
 
                 var alreadyPaidAmount = existingPayments.Sum(pi => pi.Amount);
                 var proposedTotalPaidAmount = alreadyPaidAmount + model.Amount;
-
-                if (proposedTotalPaidAmount > purchaseInvoice.TotalAmount)
+                bool proformaCheck = purchaseInvoice.ProformaInvoiceAmount.HasValue ? proposedTotalPaidAmount > purchaseInvoice.ProformaInvoiceAmount : true;
+                if (proposedTotalPaidAmount > purchaseInvoice.TotalAmount && proformaCheck)
                 {
                     _logger.LogWarning("Attempt to add payment exceeding invoice total. InvoiceId: {InvoiceId}, TenantId: {TenantId}, InvoiceTotal: {InvoiceTotal}, AlreadyPaid: {AlreadyPaid}, NewAmount: {NewAmount}, ProposedTotal: {ProposedTotal}",
                         model.InvoiceId, tenantId, purchaseInvoice.TotalAmount, alreadyPaidAmount, model.Amount, proposedTotalPaidAmount);