Update concepts-and-terms.md
diff --git a/erpnext/docs/user/manual/en/introduction/concepts-and-terms.md b/erpnext/docs/user/manual/en/introduction/concepts-and-terms.md
index 7761198..2be5a86 100644
--- a/erpnext/docs/user/manual/en/introduction/concepts-and-terms.md
+++ b/erpnext/docs/user/manual/en/introduction/concepts-and-terms.md
@@ -145,13 +145,19 @@
A person who could be a future source of business. A Lead may generate
Opportunities. (from: “may lead to a sale”).
-> Selling > Lead
+> CRM > Lead
#### Opportunity
A potential sale. (from: “opportunity for a business”).
-> Selling > Opportunity
+> CRM > Opportunity
+
+#### Quotation
+
+Customer's request to price an item or service.
+
+> Selling > Quotation
#### Sales Order