diff --git a/jey_erp/custom_fields.py b/jey_erp/custom_fields.py
index 0c2adcf..af8b23c 100644
--- a/jey_erp/custom_fields.py
+++ b/jey_erp/custom_fields.py
@@ -39,6 +39,12 @@ def create_custom_fields():
                 label='Reason',
                 fieldtype='Data',
                 insert_after='amended_from'
+            ),
+            dict(
+                fieldname='order_number',
+                label='Order number',
+                fieldtype='Data',
+                insert_after='reason'
             )
         ],
         "Company": [