legaladdress_from_customer

legaladdress_from_customer/__init__.py

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+from . import models

legaladdress_from_customer/__manifest__.py

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+{
+    "name": "Invoice legal address from customer",
+    "version": "16.0.1.0.0",
+    "category": "Accounting",
+    "summary": "Use the exact customer as invoice address",
+    "description": """
+Copies the selected customer (Klant) directly to the invoice address
+on sale orders and invoices, without collapsing to the commercial partner.
+""",
+    "depends": [
+        "account",
+        "sale",
+    ],
+    "installable": True,
+    "license": "LGPL-3",
+}

legaladdress_from_customer/models/__init__.py

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+from . import account_move
+from . import sale_order

legaladdress_from_customer/models/account_move.py

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+from odoo import api, models
+
+
+class AccountMove(models.Model):
+    _inherit = "account.move"
+
+    @api.onchange("partner_id")
+    def _onchange_partner_copy_to_invoice_address(self):
+        for move in self:
+            if move.partner_id:
+                # Copy Klant exactly to Factuuradres
+                move.partner_invoice_id = move.partner_id

legaladdress_from_customer/models/sale_order.py

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+from odoo import api, models
+
+
+class SaleOrder(models.Model):
+    _inherit = "sale.order"
+
+    @api.onchange("partner_id")
+    def _onchange_partner_copy_to_invoice_address(self):
+        for order in self:
+            if order.partner_id:
+                # Copy Klant exactly to Factuuradres
+                order.partner_invoice_id = order.partner_id