diff --git a/docs/mumbai/smart_rollups.rst b/docs/mumbai/smart_rollups.rst
index 556034db96b981284e24c0f67834d139ff028a29..cdd1821ca36a8e28922559bbc9cf0114d8d6e28b 100644
--- a/docs/mumbai/smart_rollups.rst
+++ b/docs/mumbai/smart_rollups.rst
@@ -493,6 +493,15 @@ Second, the configured rollup node can be run:
 The log should show that the rollup node follows the layer-1 chain and
 processes the inbox of each level.
 
+Rollup node in a sandbox
+""""""""""""""""""""""""
+
+The node can also be tested locally with a sandbox environment. (See :doc:`sandbox documentation <../user/sandbox>`.)
+
+Once you initialized the "sandboxed" client data with ``./src/bin_client/octez-init-sandboxed-client.sh``, you can run a sandboxed rollup node with ``octez-smart-rollup'node-alpha run``.
+
+A temporary directory ``/tmp/tezos-smart-rollup-node.xxxxxxxx`` will be used. However, a specific data directory can be set with the environment variable ``SCORU_DATA_DIR``.
+
 .. _sending_external_inbox_message_mumbai:
 
 Sending an external inbox message
diff --git a/src/bin_client/octez-init-sandboxed-client.sh b/src/bin_client/octez-init-sandboxed-client.sh
index 98b9032653236edb47aeab1bffd4fe02290f5c9c..225e142f30ae9d3a045559538211975fd8bdd7b6 100755
--- a/src/bin_client/octez-init-sandboxed-client.sh
+++ b/src/bin_client/octez-init-sandboxed-client.sh
@@ -13,6 +13,11 @@ init_sandboxed_client() {
     rpc=$((18730 + id))
     client_dir="$(mktemp -d -t tezos-tmp-client.XXXXXXXX)"
     client_dirs+=("$client_dir")
+    if [ -n "$SCORU_DATA_DIR" ]; then
+        rollup_node_dir="$SCORU_DATA_DIR"
+    else
+        rollup_node_dir="$(mktemp -d -t tezos-smart-rollup-node.XXXXXXXX)"
+    fi
     signer="$local_signer -d $client_dir"
     if [ -n "$USE_TLS" ]; then
         client="$local_client -base-dir $client_dir -endpoint https://$host:$rpc"
@@ -184,8 +189,9 @@ main () {
         echo "exec $baker \"\$@\""  >> $client_dir/bin/octez-baker-$protocol_without_number
         chmod +x $client_dir/bin/octez-baker-$protocol_without_number
 
+
         echo '#!/bin/sh' > $client_dir/bin/octez-smart-rollup-node-$protocol_without_number
-        echo "exec $sc_rollup_node \"\$@\""  >> $client_dir/bin/octez-smart-rollup-node-$protocol_without_number
+        echo "exec $sc_rollup_node \"\$@\" -data-dir $rollup_node_dir"  >> $client_dir/bin/octez-smart-rollup-node-$protocol_without_number
         chmod +x $client_dir/bin/octez-smart-rollup-node-$protocol_without_number
 
         echo '#!/bin/sh' > $client_dir/bin/octez-smart-rollup-client-$protocol_without_number