API/Schema_Changes.md

@@ -284,3 +284,18 @@ then add the attributes to the uniqueness_restriction
     "api_key" : "extra safe"
 }
 ```
+
+# Actions
+
+## Delete Attribute from Action
+
+First find the id of the attribute for the action in system.attribute_action (using the action id and attribute id from system.action and system.attribute respectively), then delete it from action_attribute:
+
+```
+#!json
+
+#/data/system/action_attribute/44/delete
+{
+}
+```
+