diff --git a/crates/meilisearch/src/personalization/mod.rs b/crates/meilisearch/src/personalization/mod.rs
index 683e337dc..9310d2679 100644
--- a/crates/meilisearch/src/personalization/mod.rs
+++ b/crates/meilisearch/src/personalization/mod.rs
@@ -11,23 +11,23 @@ const MAX_RETRIES: u32 = 10;
 
 #[derive(Debug, thiserror::Error)]
 enum PersonalizationError {
-    #[error("HTTP request failed: {0}")]
+    #[error("Personalization service: HTTP request failed: {0}")]
     Request(#[from] reqwest::Error),
-    #[error("Failed to parse response: {0}")]
+    #[error("Personalization service: Failed to parse response: {0}")]
     Parse(String),
-    #[error("Cohere API error: {0}")]
+    #[error("Personalization service: Cohere API error: {0}")]
     Api(String),
-    #[error("Unauthorized: invalid API key")]
+    #[error("Personalization service: Unauthorized: invalid API key")]
     Unauthorized,
-    #[error("Rate limited: too many requests")]
+    #[error("Personalization service: Rate limited: too many requests")]
     RateLimited,
-    #[error("Bad request: {0}")]
+    #[error("Personalization service: Bad request: {0}")]
     BadRequest(String),
-    #[error("Internal server error: {0}")]
+    #[error("Personalization service: Internal server error: {0}")]
     InternalServerError(String),
-    #[error("Network error: {0}")]
+    #[error("Personalization service: Network error: {0}")]
     Network(String),
-    #[error("Deadline exceeded")]
+    #[error("Personalization service: Deadline exceeded")]
     DeadlineExceeded,
     #[error(
         "{disabled_action} requires enabling the `{feature}` experimental feature. See {issue_link}"
diff --git a/crates/meilisearch/tests/features/mod.rs b/crates/meilisearch/tests/features/mod.rs
index e0f1afb9b..04922f4e2 100644
--- a/crates/meilisearch/tests/features/mod.rs
+++ b/crates/meilisearch/tests/features/mod.rs
@@ -207,3 +207,45 @@ async fn errors() {
     }
     "###);
 }
+
+#[actix_rt::test]
+async fn search_with_personalization_without_enabling_the_feature() {
+    let server = Server::new().await;
+    let index = server.unique_index();
+
+    // Create the index and add some documents
+    let (task, _code) = index.create(None).await;
+    server.wait_task(task.uid()).await.succeeded();
+
+    let (task, _code) = index
+        .add_documents(
+            json!([
+                {"id": 1, "title": "The Dark Knight", "genre": "Action"},
+                {"id": 2, "title": "Inception", "genre": "Sci-Fi"},
+                {"id": 3, "title": "The Matrix", "genre": "Sci-Fi"}
+            ]),
+            None,
+        )
+        .await;
+    server.wait_task(task.uid()).await.succeeded();
+
+    // Try to search with personalization - should return feature_not_enabled error
+    let (response, code) = index
+        .search_post(json!({
+            "q": "movie",
+            "personalize": {
+                "userContext": "I love science fiction movies"
+            }
+        }))
+        .await;
+
+    meili_snap::snapshot!(code, @"400 Bad Request");
+    meili_snap::snapshot!(meili_snap::json_string!(response), @r###"
+    {
+      "message": "reranking search results requires enabling the `personalization` experimental feature. See https://github.com/orgs/meilisearch/discussions/866",
+      "code": "feature_not_enabled",
+      "type": "invalid_request",
+      "link": "https://docs.meilisearch.com/errors#feature_not_enabled"
+    }
+    "###);
+}
diff --git a/crates/meilisearch/tests/search/errors.rs b/crates/meilisearch/tests/search/errors.rs
index 6054a5d16..3fd4fb1d6 100644
--- a/crates/meilisearch/tests/search/errors.rs
+++ b/crates/meilisearch/tests/search/errors.rs
@@ -1,7 +1,11 @@
 use meili_snap::*;
+use meilisearch::Opt;
+use tempfile::TempDir;
 
 use super::test_settings_documents_indexing_swapping_and_search;
-use crate::common::{shared_does_not_exists_index, Server, DOCUMENTS, NESTED_DOCUMENTS};
+use crate::common::{
+    default_settings, shared_does_not_exists_index, Server, DOCUMENTS, NESTED_DOCUMENTS,
+};
 use crate::json;
 
 #[actix_rt::test]
@@ -1320,3 +1324,97 @@ async fn search_with_contains_without_enabling_the_feature() {
     }
     "#);
 }
+
+#[actix_rt::test]
+async fn search_with_personalization_invalid_api_key() {
+    // Create a server with a fake personalization API key
+    let dir = TempDir::new().unwrap();
+    let options = Opt {
+        experimental_personalization_api_key: Some("fake-api-key-12345".to_string()),
+        ..default_settings(dir.path())
+    };
+    let server = Server::new_with_options(options).await.unwrap();
+    let index = server.unique_index();
+
+    // Create the index and add some documents
+    let (task, _code) = index.create(None).await;
+    server.wait_task(task.uid()).await.succeeded();
+
+    let (task, _code) = index
+        .add_documents(
+            json!([
+                {"id": 1, "title": "The Dark Knight", "genre": "Action"},
+                {"id": 2, "title": "Inception", "genre": "Sci-Fi"},
+                {"id": 3, "title": "The Matrix", "genre": "Sci-Fi"}
+            ]),
+            None,
+        )
+        .await;
+    server.wait_task(task.uid()).await.succeeded();
+
+    // Try to search with personalization - should return remote_invalid_api_key error
+    let (response, code) = index
+        .search_post(json!({
+            "q": "the",
+            "personalize": {
+                "userContext": "I love science fiction movies"
+            }
+        }))
+        .await;
+
+    snapshot!(code, @"403 Forbidden");
+    snapshot!(json_string!(response), @r#"
+    {
+      "message": "Personalization service: Unauthorized: invalid API key",
+      "code": "remote_invalid_api_key",
+      "type": "auth",
+      "link": "https://docs.meilisearch.com/errors#remote_invalid_api_key"
+    }
+    "#);
+}
+
+#[actix_rt::test]
+async fn search_with_personalization_no_user_context() {
+    // Create a server with a fake personalization API key
+    let dir = TempDir::new().unwrap();
+    let options = Opt {
+        experimental_personalization_api_key: Some("fake-api-key-12345".to_string()),
+        ..default_settings(dir.path())
+    };
+    let server = Server::new_with_options(options).await.unwrap();
+    let index = server.unique_index();
+
+    // Create the index and add some documents
+    let (task, _code) = index.create(None).await;
+    server.wait_task(task.uid()).await.succeeded();
+
+    let (task, _code) = index
+        .add_documents(
+            json!([
+                {"id": 1, "title": "The Dark Knight", "genre": "Action"},
+                {"id": 2, "title": "Inception", "genre": "Sci-Fi"},
+                {"id": 3, "title": "The Matrix", "genre": "Sci-Fi"}
+            ]),
+            None,
+        )
+        .await;
+    server.wait_task(task.uid()).await.succeeded();
+
+    // Try to search with personalization - should return remote_invalid_api_key error
+    let (response, code) = index
+        .search_post(json!({
+            "q": "the",
+            "personalize": {}
+        }))
+        .await;
+
+    snapshot!(code, @"400 Bad Request");
+    snapshot!(json_string!(response), @r###"
+    {
+      "message": "Missing field `userContext` inside `.personalize`",
+      "code": "invalid_search_personalize",
+      "type": "invalid_request",
+      "link": "https://docs.meilisearch.com/errors#invalid_search_personalize"
+    }
+    "###);
+}