diff --git a/netforce_clinic/todo.txt b/netforce_clinic/todo.txt
index 43a2aa6..5dd8b32 100644
--- a/netforce_clinic/todo.txt
+++ b/netforce_clinic/todo.txt
@@ -2,3 +2,6 @@ redesign print payment & invoice from hdcase
     - print payment
          - direct payment
          - invoice payment
+
+migration:
+    match invoice less than 2015-06-30  to hdcase