diff --git a/libsignal-service/src/account_manager.rs b/libsignal-service/src/account_manager.rs
index 0ca2abad9..379913054 100644
--- a/libsignal-service/src/account_manager.rs
+++ b/libsignal-service/src/account_manager.rs
@@ -626,6 +626,7 @@ impl<Service: PushService> AccountManager<Service> {
     /// Should be called as the primary device to migrate from pre-PNI to PNI.
     ///
     /// This is the equivalent of Android's PnpInitializeDevicesJob or iOS' PniHelloWorldManager.
+    #[tracing::instrument(skip(self, aci_protocol_store, pni_protocol_store, sender, local_aci, csprng), fields(local_aci = %local_aci))]
     pub async fn pnp_initialize_devices<
         // XXX So many constraints here, all imposed by the MessageSender
         R: rand::Rng + rand::CryptoRng,
diff --git a/libsignal-service/src/sender.rs b/libsignal-service/src/sender.rs
index f0c8fcfd7..dca9ba03e 100644
--- a/libsignal-service/src/sender.rs
+++ b/libsignal-service/src/sender.rs
@@ -315,8 +315,8 @@ where
 
     /// Send a message `content` to a single `recipient`.
     #[tracing::instrument(
-        skip(self, unidentified_access, message),
-        fields(unidentified_access = unidentified_access.is_some()),
+        skip(self, unidentified_access, message, recipient),
+        fields(unidentified_access = unidentified_access.is_some(), recipient = %recipient),
     )]
     pub async fn send_message(
         &mut self,
@@ -496,8 +496,8 @@ where
     /// Send a message (`content`) to an address (`recipient`).
     #[tracing::instrument(
         level = "trace",
-        skip(self, unidentified_access, content_body),
-        fields(unidentified_access = unidentified_access.is_some()),
+        skip(self, unidentified_access, content_body, recipient),
+        fields(unidentified_access = unidentified_access.is_some(), recipient = %recipient),
     )]
     async fn try_send_message(
         &mut self,
@@ -646,8 +646,8 @@ where
 
     /// Upload contact details to the CDN and send a sync message
     #[tracing::instrument(
-        skip(self, unidentified_access, contacts),
-        fields(unidentified_access = unidentified_access.is_some()),
+        skip(self, unidentified_access, contacts, recipient),
+        fields(unidentified_access = unidentified_access.is_some(), recipient = %recipient),
     )]
     pub async fn send_contact_details<Contacts>(
         &mut self,
@@ -687,7 +687,7 @@ where
     }
 
     /// Send `Configuration` synchronization message
-    #[tracing::instrument(skip(self))]
+    #[tracing::instrument(skip(self, recipient), fields(recipient = %recipient))]
     pub async fn send_configuration(
         &mut self,
         recipient: &ServiceAddress,
@@ -706,7 +706,7 @@ where
     }
 
     /// Send `MessageRequestResponse` synchronization message with either a recipient ACI or a GroupV2 ID
-    #[tracing::instrument(skip(self))]
+    #[tracing::instrument(skip(self, recipient), fields(recipient = %recipient))]
     pub async fn send_message_request_response(
         &mut self,
         recipient: &ServiceAddress,
@@ -772,8 +772,8 @@ where
     // Equivalent with `getEncryptedMessages`
     #[tracing::instrument(
         level = "trace",
-        skip(self, unidentified_access, content),
-        fields(unidentified_access = unidentified_access.is_some()),
+        skip(self, unidentified_access, content, recipient),
+        fields(unidentified_access = unidentified_access.is_some(), recipient = %recipient),
     )]
     async fn create_encrypted_messages(
         &mut self,
@@ -882,8 +882,8 @@ where
     /// When no session with the recipient exists, we need to create one.
     #[tracing::instrument(
         level = "trace",
-        skip(self, unidentified_access, content),
-        fields(unidentified_access = unidentified_access.is_some()),
+        skip(self, unidentified_access, content, recipient),
+        fields(unidentified_access = unidentified_access.is_some(), recipient = %recipient),
     )]
     pub(crate) async fn create_encrypted_message(
         &mut self,
diff --git a/libsignal-service/src/service_address.rs b/libsignal-service/src/service_address.rs
index 912c06503..de3c74267 100644
--- a/libsignal-service/src/service_address.rs
+++ b/libsignal-service/src/service_address.rs
@@ -20,6 +20,18 @@ pub struct ServiceAddress {
     pub identity: ServiceIdType,
 }
 
+impl std::fmt::Display for ServiceAddress {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        // This is used in ServiceAddress::to_service_id(&self), so keep this consistent.
+        match self.identity {
+            ServiceIdType::AccountIdentity => write!(f, "{}", self.uuid),
+            ServiceIdType::PhoneNumberIdentity => {
+                write!(f, "PNI:{}", self.uuid)
+            },
+        }
+    }
+}
+
 impl ServiceAddress {
     pub fn to_protocol_address(
         &self,
@@ -71,12 +83,7 @@ impl ServiceAddress {
     }
 
     pub fn to_service_id(&self) -> String {
-        match self.identity {
-            ServiceIdType::AccountIdentity => self.uuid.to_string(),
-            ServiceIdType::PhoneNumberIdentity => {
-                format!("PNI:{}", self.uuid)
-            },
-        }
+        self.to_string()
     }
 }