From a1a08ef8d985d2eb0a142f5e4dae1af3e3c8dc23 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Wed, 8 Apr 2026 18:49:25 +0200
Subject: [PATCH] Remove invalid SEPA mandate when payment is reset to draft

Closes #14756
---
 modules/account_payment_sepa/payment.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/modules/account_payment_sepa/payment.py b/modules/account_payment_sepa/payment.py
index 8365a117a2..7a2572fb45 100644
--- a/modules/account_payment_sepa/payment.py
+++ b/modules/account_payment_sepa/payment.py
@@ -489,6 +489,19 @@ class Payment(metaclass=PoolMeta):
             ('sepa_info_id', operator, code_value, *extra),
             ]
 
+    @classmethod
+    @ModelView.button
+    @Workflow.transition('draft')
+    def draft(cls, payments):
+        to_remove_mandate = []
+        for payment in payments:
+            if (payment.sepa_mandate
+                    and payment.sepa_mandate.state != 'validated'):
+                to_remove_mandate.append(payment)
+        if to_remove_mandate:
+            cls.write(to_remove_mandate, {'sepa_mandate': None})
+        super().draft(payments)
+
 
 class Payment_Invoice(metaclass=PoolMeta):
     __name__ = 'account.payment'