Update configuration.md

Author: JV0812

docs/send-data/installed-collectors/configuration.md

@@ -99,8 +99,7 @@ Generally, as the number of Sources increases, the number of threads also increa
 
 ## About Collector and Source installation and configuration
 
-This section is an overview of the multiple methods Sumo provides for
-installing and configuring Collectors and Sources.
+This section is an overview of the multiple methods Sumo provides for installing and configuring Collectors and Sources.
 
 ### Collector installation and configuration
 
@@ -119,6 +118,10 @@ A few Installed Collector behaviors, such as caching, are configured in the `co
 
 You can update the configuration of an Installed Collector using the Collector Management API. For more information, see Collector API Methods and Examples.
 
+:::note
+Any collector that has been inactive for 12 months or longer will be automatically deleted. To reuse the same collector, you need to uninstall any remaining services and perform a fresh installation.
+:::
+
 ### Source configuration
 
 You can set up as many as 1,000 Sources on a given Collector. A Source should be configured to collect similar data types. For example, you might set up three Local File Sources to collect router activity logs from three locations, and another Local File Source to collect logs from a web application.