diff --git a/src/caller/mod.rs b/src/caller/mod.rs
index db43e41..108a170 100644
--- a/src/caller/mod.rs
+++ b/src/caller/mod.rs
@@ -28,6 +28,8 @@ pub mod endpoints {
     pub const DELETE_SCHEDULED_MESSAGE_EVENT: &str = "/api/v1/schedule/message/event/{id}";
     /// Constant for fetching Scheduled Message endpoint
     pub const FETCH_SCHEDULED_MESSAGE: &str = "/api/v1/schedule/message/fetch";
+    /// Constant for recording Message Event Response endpoint
+    pub const RECORD_MESSAGE_EVENT_RESPONSE: &str = "/api/v1/schedule/message/event/response/record";
 }
 
 pub mod response {