From 5271404566cc74584fcb40dcd66bc1f215562ecf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Thu, 30 Oct 2025 01:11:22 +0100
Subject: [PATCH] Test from location when checking warehouse for purchase line
 with negative quantity

Closes #14333
(grafted from f21002c5cb1882a5cc6e7375aec7db45fc56698f)

--HG--
branch : 6.0
---
 modules/purchase/purchase.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/modules/purchase/purchase.py b/modules/purchase/purchase.py
index 3a42cbed94..63fcfa3d33 100644
--- a/modules/purchase/purchase.py
+++ b/modules/purchase/purchase.py
@@ -745,7 +745,11 @@ class Purchase(
 
     def check_for_quotation(self):
         for line in self.lines:
-            if (not line.to_location
+            if (line.quantity or 0) >= 0:
+                location = line.to_location
+            else:
+                location = line.from_location
+            if (not location
                     and line.product
                     and line.product.type in ('goods', 'assets')):
                 raise PurchaseQuotationError(