diff --git a/core/common/src/utils.rs b/core/common/src/utils.rs
index 2c7fca8f..2cfdc445 100644
--- a/core/common/src/utils.rs
+++ b/core/common/src/utils.rs
@@ -13,16 +13,23 @@ use strum_macros::Display;
 use tokio::time::{sleep, Duration};
 use tonic::{Request, Status};
 
+/// An identifier used when discovering a service through Chariott.
 #[derive(Debug, Deserialize)]
 pub struct ServiceIdentifier {
+    /// The namespace of the service.
     pub namespace: String,
+    /// The name of the service.
     pub name: String,
+    /// The version of the service.
     pub version: String,
 }
 
+/// An enum representing where to discover a service's URI.
 #[derive(Display, Debug, Deserialize)]
 pub enum ServiceUriSource {
+    /// Use the local configuration settings to find the service's URI.
     Local { service_uri: String },
+    /// Use Chariott to discover the service's URI.
     Chariott { chariott_uri: String, service_identifier: ServiceIdentifier },
 }
 
diff --git a/core/module/managed_subscribe/src/managed_subscribe_module.rs b/core/module/managed_subscribe/src/managed_subscribe_module.rs
index 38f56cbd..f336ebdb 100644
--- a/core/module/managed_subscribe/src/managed_subscribe_module.rs
+++ b/core/module/managed_subscribe/src/managed_subscribe_module.rs
@@ -61,17 +61,25 @@ pub enum TopicAction {
     Delete,
 }
 
+/// Settings retrieved from a configuration file.
 #[derive(Debug, Deserialize)]
 pub struct ConfigSettings {
+    /// Where to host the Managed Subscribe module.
     pub base_authority: String,
+    /// Where to retrieve the Managed Subscribe Service URI from.
     pub managed_subscribe_uri_source: ServiceUriSource,
 }
 
+/// Struct that handles communication with the Managed Subscribe service.
 #[derive(Clone, Debug)]
 pub struct ManagedSubscribeModule {
+    /// The URI of the Managed Subscribe service.
     pub managed_subscribe_uri: String,
+    /// The URI of the Managed Subscribe module.
     pub service_uri: String,
+    /// The protocol used to communicate with the Managed Subscribe module.
     pub service_protocol: String,
+    /// Shared store for the Managed Subscribe module.
     pub store: Arc<RwLock<ManagedSubscribeStore>>,
 }