diff --git a/br/backup-and-restore-overview.md b/br/backup-and-restore-overview.md
index fb9b040e84706..5e1b4d7cb5e92 100644
--- a/br/backup-and-restore-overview.md
+++ b/br/backup-and-restore-overview.md
@@ -25,6 +25,7 @@ This section describes the prerequisites for using TiDB backup and restore, incl
 - PITR only supports cluster-level restore and does not support database-level or table-level restore.
 - PITR does not support restoring the data of user tables or privilege tables from system tables.
 - BR does not support running multiple backup tasks on a cluster **at the same time**.
+- BR does not support running snapshot backup tasks and data restore tasks on a cluster **at the same time**.
 - When a PITR is running, you cannot run a log backup task or use TiCDC to replicate data to a downstream cluster.
 
 ### Some tips