diff --git a/purchase_order_approval_block b/purchase_order_approval_block
new file mode 120000
index 00000000..7819f2d7
--- /dev/null
+++ b/purchase_order_approval_block
@@ -0,0 +1 @@
+./external/hibou-oca/purchase-workflow/purchase_order_approval_block
\ No newline at end of file