diff --git a/receiver/mysqlreceiver/README.md b/receiver/mysqlreceiver/README.md
index 6e0b136feebe..0a53cffaddac 100644
--- a/receiver/mysqlreceiver/README.md
+++ b/receiver/mysqlreceiver/README.md
@@ -16,6 +16,9 @@
 
 This receiver queries MySQL's global status and InnoDB tables.
 
+Some metrics will not appear if their corresponding feature is inactive.  
+There are also optional metrics that you must specify in your configuration to collect,  listed in [documentation.md](./documentation.md) 
+
 ## Prerequisites
 
 This receiver supports MySQL version 8.0