From 4c1a61f085fc42feac0a1b2655a328af6dff800c Mon Sep 17 00:00:00 2001
From: PUGAZHENDHI V <126157273+PugazhendhiVelu@users.noreply.github.com>
Date: Mon, 25 Aug 2025 11:58:43 +0530
Subject: [PATCH] fix: validate dot in numeric placeholders (#33739)

* fix: validate dot in numeric placeholders

* fix: failed test cases
---
 frappe/model/naming.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/frappe/model/naming.py b/frappe/model/naming.py
index 44fe56824c..bc1eb9d0f3 100644
--- a/frappe/model/naming.py
+++ b/frappe/model/naming.py
@@ -71,6 +71,14 @@ class NamingSeries:
 				exc=InvalidNamingSeriesError,
 			)
 
+		if "#" in self.series and ".#" not in self.series:
+			frappe.throw(
+				_(
+					"Invalid naming series {}: dot (.) missing before the numeric placeholders. Kindly use a format like <b>ABCD.#####</b>."
+				).format(frappe.bold(self.series)),
+				exc=InvalidNamingSeriesError,
+			)
+
 	def generate_next_name(self, doc: "Document", *, ignore_validate=False) -> str:
 		if not ignore_validate:
 			self.validate()