diff --git a/ayanova/devdocs/todo.txt b/ayanova/devdocs/todo.txt
index 5d53a84a..986e6bee 100644
--- a/ayanova/devdocs/todo.txt
+++ b/ayanova/devdocs/todo.txt
@@ -5,6 +5,12 @@
 
 MISC ITEMS THAT CAME UP
 
+todo: PartAssemblyBiz shows the correct way to replace an object in it's PUT route
+	previously doing unnecessary copyobject to an interim snapshot object for no apparent reason
+	Go through all *biz classes and look to update to this method
+	also use GetAsync instead of directly querying again in the Put methods of all *biz objects where possible
+		and ensure it has AsNoTracking added because even when it's used in batch jobs etc they do a PUT and do not
+		directly save the retrieved object so that's what is appropriate
 todo: All indexes in db sb named starting with idx_ instead of just the table name, so just prepend idx_ to every index
 todo: foreign keys are not indexed by default in the referencing table (the one who references)
 	take a look and see if any should be indexed when doing above