fix(selling): hide commission fields without a sales partner and stop copying them

Across Sales Order, Delivery Note, Sales Invoice and POS Invoice, the
Commission section's commission_rate, total_commission and
amount_eligible_for_commission are sales-partner commission fields:
- depends_on eval:doc.sales_partner so they only show when a Sales Partner
  is set;
- no_copy so a duplicated/amended document does not carry a stale commission
  rate or computed commission amount (the sales partner itself still copies).

depends_on is client-only, so the server-side commission calculation is
unchanged. Add a Sales Order test for the no_copy behaviour.

erpnext/accounts/doctype/pos_invoice/pos_invoice.json

@@ -1425,19 +1425,23 @@
    "width": "50%"
   },
   {
+   "depends_on": "eval:doc.sales_partner",
    "fetch_from": "sales_partner.commission_rate",
    "fetch_if_empty": 1,
    "fieldname": "commission_rate",
    "fieldtype": "Float",
    "label": "Commission Rate (%)",
+   "no_copy": 1,
    "oldfieldname": "commission_rate",
    "oldfieldtype": "Currency",
    "print_hide": 1
   },
   {
+   "depends_on": "eval:doc.sales_partner",
    "fieldname": "total_commission",
    "fieldtype": "Currency",
    "label": "Total Commission",
+   "no_copy": 1,
    "oldfieldname": "total_commission",
    "oldfieldtype": "Currency",
    "options": "Company:company:default_currency",
@@ -1528,9 +1532,11 @@
    "print_hide": 1
   },
   {
+   "depends_on": "eval:doc.sales_partner",
    "fieldname": "amount_eligible_for_commission",
    "fieldtype": "Currency",
    "label": "Amount Eligible for Commission",
+   "no_copy": 1,
    "options": "Company:company:default_currency",
    "read_only": 1
   },
@@ -1636,7 +1642,7 @@
  "icon": "fa fa-file-text",
  "is_submittable": 1,
  "links": [],
- "modified": "2026-05-28 12:22:50.253090",
+ "modified": "2026-06-21 12:46:13.250145",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "POS Invoice",

erpnext/accounts/doctype/sales_invoice/sales_invoice.json

@@ -1747,6 +1747,7 @@
    "width": "50%"
   },
   {
+   "depends_on": "eval:doc.sales_partner",
    "fetch_from": "sales_partner.commission_rate",
    "fetch_if_empty": 1,
    "fieldname": "commission_rate",
@@ -1754,16 +1755,19 @@
    "hide_days": 1,
    "hide_seconds": 1,
    "label": "Commission Rate (%)",
+   "no_copy": 1,
    "oldfieldname": "commission_rate",
    "oldfieldtype": "Currency",
    "print_hide": 1
   },
   {
+   "depends_on": "eval:doc.sales_partner",
    "fieldname": "total_commission",
    "fieldtype": "Currency",
    "hide_days": 1,
    "hide_seconds": 1,
    "label": "Total Commission",
+   "no_copy": 1,
    "oldfieldname": "total_commission",
    "oldfieldtype": "Currency",
    "options": "Company:company:default_currency",
@@ -1970,9 +1974,11 @@
    "read_only": 1
   },
   {
+   "depends_on": "eval:doc.sales_partner",
    "fieldname": "amount_eligible_for_commission",
    "fieldtype": "Currency",
    "label": "Amount Eligible for Commission",
+   "no_copy": 1,
    "options": "Company:company:default_currency",
    "read_only": 1
   },
@@ -2354,7 +2360,7 @@
    "link_fieldname": "consolidated_invoice"
   }
  ],
- "modified": "2026-05-28 12:15:12.486443",
+ "modified": "2026-06-21 12:46:13.250145",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Sales Invoice",

erpnext/selling/doctype/sales_order/sales_order.json

@@ -1329,6 +1329,7 @@
    "width": "50%"
   },
   {
+   "depends_on": "eval:doc.sales_partner",
    "fetch_from": "sales_partner.commission_rate",
    "fetch_if_empty": 1,
    "fieldname": "commission_rate",
@@ -1336,17 +1337,20 @@
    "hide_days": 1,
    "hide_seconds": 1,
    "label": "Commission Rate",
+   "no_copy": 1,
    "oldfieldname": "commission_rate",
    "oldfieldtype": "Currency",
    "print_hide": 1,
    "width": "100px"
   },
   {
+   "depends_on": "eval:doc.sales_partner",
    "fieldname": "total_commission",
    "fieldtype": "Currency",
    "hide_days": 1,
    "hide_seconds": 1,
    "label": "Total Commission",
+   "no_copy": 1,
    "oldfieldname": "total_commission",
    "oldfieldtype": "Currency",
    "options": "Company:company:default_currency",
@@ -1477,9 +1481,11 @@
   },
   {
    "allow_on_submit": 1,
+   "depends_on": "eval:doc.sales_partner",
    "fieldname": "amount_eligible_for_commission",
    "fieldtype": "Currency",
    "label": "Amount Eligible for Commission",
+   "no_copy": 1,
    "options": "Company:company:default_currency",
    "read_only": 1
   },
@@ -1760,7 +1766,7 @@
  "idx": 105,
  "is_submittable": 1,
  "links": [],
- "modified": "2026-05-28 11:41:11.823034",
+ "modified": "2026-06-21 12:46:13.250145",
  "modified_by": "Administrator",
  "module": "Selling",
  "name": "Sales Order",

erpnext/selling/doctype/sales_order/test_sales_order.py

@@ -3044,6 +3044,25 @@ class TestSalesOrder(ERPNextTestSuite):
 		finally:
 			frappe.db.set_value("Item", "_Test Item", "grant_commission", 1)
 
+	def test_commission_fields_not_copied_on_duplicate(self):
+		"""Commission rate/amount fields are no_copy; only the sales partner carries to a copy."""
+		frappe.db.set_value("Item", "_Test Item", "grant_commission", 1)
+		try:
+			so = make_sales_order(qty=10, rate=100, do_not_save=True)
+			so.sales_partner = "_Test Sales Partner India - 1"
+			so.commission_rate = 7
+			so.save()
+			self.assertEqual(so.total_commission, 70)
+
+			# ignore_no_copy=False mirrors UI "Duplicate"/amend, which honour no_copy
+			duplicate = frappe.copy_doc(so, ignore_no_copy=False)
+			self.assertEqual(duplicate.sales_partner, "_Test Sales Partner India - 1")
+			self.assertFalse(duplicate.commission_rate)
+			self.assertFalse(duplicate.total_commission)
+			self.assertFalse(duplicate.amount_eligible_for_commission)
+		finally:
+			frappe.db.set_value("Item", "_Test Item", "grant_commission", 1)
+
 
 def compare_payment_schedules(doc, doc1, doc2):
 	for index, schedule in enumerate(doc1.get("payment_schedule")):

erpnext/stock/doctype/delivery_note/delivery_note.json

@@ -1154,11 +1154,13 @@
    "width": "50%"
   },
   {
+   "depends_on": "eval:doc.sales_partner",
    "fetch_from": "sales_partner.commission_rate",
    "fetch_if_empty": 1,
    "fieldname": "commission_rate",
    "fieldtype": "Float",
    "label": "Commission Rate (%)",
+   "no_copy": 1,
    "oldfieldname": "commission_rate",
    "oldfieldtype": "Currency",
    "print_hide": 1,
@@ -1166,9 +1168,11 @@
    "width": "100px"
   },
   {
+   "depends_on": "eval:doc.sales_partner",
    "fieldname": "total_commission",
    "fieldtype": "Currency",
    "label": "Total Commission",
+   "no_copy": 1,
    "oldfieldname": "total_commission",
    "oldfieldtype": "Currency",
    "options": "Company:company:default_currency",
@@ -1262,9 +1266,11 @@
    "read_only": 1
   },
   {
+   "depends_on": "eval:doc.sales_partner",
    "fieldname": "amount_eligible_for_commission",
    "fieldtype": "Currency",
    "label": "Amount Eligible for Commission",
+   "no_copy": 1,
    "options": "Company:company:default_currency",
    "read_only": 1
   },
@@ -1466,7 +1472,7 @@
  "idx": 146,
  "is_submittable": 1,
  "links": [],
- "modified": "2026-05-28 11:44:37.286743",
+ "modified": "2026-06-21 12:46:13.250145",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Delivery Note",