home/04-Features/04-Behaviour-Details.md

@@ -2,6 +2,7 @@
 title: Behaviour Details
 ---
 
+
 # **Behavioral Details**
 
 This section provides a more detailed description of specific behavioral aspects of the API. The following information is not necessary to use the demo.
@@ -15,7 +16,7 @@ This section provides a more detailed description of specific behavioral aspects
 - When creating a datapoint subscription via a `POST` request, the API will **not create duplicate datapoint subscriptions**.
   - Example: If a `POST` request subscribes to both a **device** and a **location** with the "expand" behavior (where a included location contains the device), it will **not result in duplicate callbacks** for the device´s datapoints.
   
-- The **Subscription Secret** is a mandatory attribute. The API requires that the secret contains **at least one character**, while **whitespace or empty values** are not allowed.
+- The **Subscription Secret** is a mandatory attribute. The API requires that the secret contains **at least one character**, while **whitespace or null values** are not allowed.
 
 ## **Subscription Expiration**