diff --git a/Create-Cropfield.md b/Create-Cropfield.md
index 0d04822..0fe022b 100644
--- a/Create-Cropfield.md
+++ b/Create-Cropfield.md
@@ -66,6 +66,7 @@ Response 404 Parent Item not found
 
 * Create a 'vnd.farmmaps.itemtype.cropfield' item as a child of the 'FOLDER' item.  
 Needs to contain dataDate and dataEndDate to specify cropfield season.  
+dataDate needs to be before dataEndDate and cannot be the same day.  
 The data field needs to contain the startDate and endDate keys with the same values as dataDate(startDate) and dataEndDate(endDate)  
 > Request
 ```javascript