fix: Grammar in Error message
diff --git a/erpnext/accounts/doctype/promotional_scheme/promotional_scheme.py b/erpnext/accounts/doctype/promotional_scheme/promotional_scheme.py
index 0fade84..3d7a891 100644
--- a/erpnext/accounts/doctype/promotional_scheme/promotional_scheme.py
+++ b/erpnext/accounts/doctype/promotional_scheme/promotional_scheme.py
@@ -26,7 +26,7 @@
class PromotionalScheme(Document):
def validate(self):
if not self.selling and not self.buying:
- frappe.throw(_("Atleast one of the Selling or Buying must be selected"))
+ frappe.throw(_("Either 'Selling' or 'Buying' must be selected"), title=_("Mandatory"))
if not (self.price_discount_slabs
or self.product_discount_slabs):
frappe.throw(_("Price or product discount slabs are required"))