fix: pos profile not mandatory for Sales Invoice (#26876)

erpnext/accounts/doctype/sales_invoice/sales_invoice.py

@@ -480,7 +480,7 @@ class SalesInvoice(SellingController):
 		if not self.pos_profile:
 			pos_profile = get_pos_profile(self.company) or {}
 			if not pos_profile:
-				frappe.throw(_("No POS Profile found. Please create a New POS Profile first"))
+				return
 			self.pos_profile = pos_profile.get('name')
 
 		pos = {}