From 4bd59644d1bc2a718612e213bdaf354e2c1b43a6 Mon Sep 17 00:00:00 2001
From: Akshay Mankar <itsakshaymankar@gmail.com>
Date: Mon, 8 Dec 2025 16:27:30 +0100
Subject: [PATCH] ConversationStore.Cassandra: Include more details about the
 invalid group id

---
 libs/wire-subsystems/src/Wire/ConversationStore/Cassandra.hs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libs/wire-subsystems/src/Wire/ConversationStore/Cassandra.hs b/libs/wire-subsystems/src/Wire/ConversationStore/Cassandra.hs
index cab006f3464..8a535b2aa44 100644
--- a/libs/wire-subsystems/src/Wire/ConversationStore/Cassandra.hs
+++ b/libs/wire-subsystems/src/Wire/ConversationStore/Cassandra.hs
@@ -1515,11 +1515,11 @@ filterUsersInPostgres uids = do
 groupIdToConvId :: (Member (Error MigrationError) r) => GroupId -> Sem r ConvId
 groupIdToConvId gid =
   case groupIdToConv gid of
-    Left _ -> throw InvalidGroupId
+    Left e -> throw $ InvalidGroupId gid e
     Right (_, gidParts) -> pure gidParts.qConvId.qUnqualified.conv
 
 data MigrationError
-  = InvalidGroupId
+  = InvalidGroupId GroupId String
   | FailedToAcquireMigrationLock MigrationLockError
   deriving (Show)