diff --git a/api/scpca_portal/models/computed_file.py b/api/scpca_portal/models/computed_file.py
index f0b88c6e..d032645b 100644
--- a/api/scpca_portal/models/computed_file.py
+++ b/api/scpca_portal/models/computed_file.py
@@ -154,9 +154,7 @@ def get_project_file(cls, project, download_config: Dict) -> Self | None:
         libraries = project.get_libraries(download_config)
         # If the query returns empty, then throw an error occurred.
         if not libraries.exists():
-            raise ValueError(
-                "Invalid request: no libraries exist with this project-download_config combination."
-            )
+            raise ValueError("Unable to find libraries for download_config.")
 
         libraries_metadata = [
             lib_md for library in libraries for lib_md in library.get_combined_library_metadata()
@@ -230,9 +228,7 @@ def get_sample_file(cls, sample, download_config: Dict) -> Self | None:
         libraries = sample.get_libraries(download_config)
         # If the query returns empty, then throw an error occurred.
         if not libraries.exists():
-            raise ValueError(
-                "Invalid request: no libraries exist with this sample-download_config combination."
-            )
+            raise ValueError("Unable to find libraries for download_config.")
 
         libraries_metadata = [
             lib_md for library in libraries for lib_md in library.get_combined_library_metadata()
diff --git a/api/scpca_portal/models/project.py b/api/scpca_portal/models/project.py
index e9ad7344..3d12caf0 100644
--- a/api/scpca_portal/models/project.py
+++ b/api/scpca_portal/models/project.py
@@ -209,7 +209,7 @@ def get_libraries(self, download_config: Dict = {}):  # -> QuerySet[Library]:
             return self.libraries.all()
 
         if download_config not in common.PROJECT_DOWNLOAD_CONFIGS.values():
-            raise ValueError("Invalid download configuration passed. Unable to retrieve libraries.")
+            raise ValueError("Invalid download_config passed. Unable to retrieve libraries.")
 
         # You cannot include multiplexed when there are no multiplexed libraries
         if not download_config["excludes_multiplexed"] and not self.has_multiplexed_data:
diff --git a/api/scpca_portal/models/sample.py b/api/scpca_portal/models/sample.py
index b6915938..c9f9e4f5 100644
--- a/api/scpca_portal/models/sample.py
+++ b/api/scpca_portal/models/sample.py
@@ -145,7 +145,7 @@ def get_libraries(self, download_config: Dict = {}):  # -> QuerySet[Library]:
             return self.libraries.all()
 
         if download_config not in common.SAMPLE_DOWNLOAD_CONFIGS.values():
-            raise ValueError("Invalid download configuration passed. Unable to retrieve libraries.")
+            raise ValueError("Invalid download_config passed. Unable to retrieve libraries.")
 
         return self.libraries.filter(
             modality=download_config["modality"],