diff --git a/ayanova/devdocs/todo.txt b/ayanova/devdocs/todo.txt
index 1ffea507..11fe7c15 100644
--- a/ayanova/devdocs/todo.txt
+++ b/ayanova/devdocs/todo.txt
@@ -5,6 +5,15 @@
 
 MISC ITEMS THAT CAME UP
 
+todo: *biz objects with foreign key constraints should call ValidateCanDelete 
+	and validatecandelete *MUST* check for those constraints and return a proper error object
+	Note: this must happen independently for EACH reference so check each referencing table one by one and add an error for each to send back to user
+	this avoids displaying fucked up internal exception messages in english and is absolutely mandatory
+	Serach AyaSchema for "REFERENCES" and any table that is found in the object that table references must have a delete validation check added to the referenced object to check in the referencing table
+		iow: apartinventory REFERENCES apartwarehouseid so PartWarehouseBiz ValidateCanDelete must check if there are any apartinventory with this warehouse 
+		(also PartWarehouseBiz ValidateCanDelete is the references for this code)
+
+
 todo: standardize routes and route names and form names
 	Use plural and singular names throughout for consistency
 	i.e. "-edit" forms shoudl be standardized to just th singular name so "part-assembly-edit" sb "part-assembly"
@@ -265,6 +274,7 @@ EACH OBJECT DEV CYCLE:
 		Biz object and all supported interfaces (searchable, exportable etc)
 		Biz Object SEARCH Index / getsearchresult code add unique text fields	
 		Business rules port from v7 and new ones
+			ValidateCanDete MUST check if any foreign key constraints and return proper error rather than bombing on attempted delete
 		Notification code if applicable
 		Controller routes and associated code	
 		Translation keys