diff --git a/VERSION.md b/VERSION.md
index 97bbe68..bd37b93 100644
--- a/VERSION.md
+++ b/VERSION.md
@@ -3,6 +3,7 @@
 ## Version 0.0.20
 
 - NEW: Whatsapp directline client is now working in preview.
+- NEW: Parameter whatsappServiceWebhookUrl added.
 
 ## Version 0.0.19
 
diff --git a/src/IGBInstance.ts b/src/IGBInstance.ts
index d81eb92..2b9fa27 100644
--- a/src/IGBInstance.ts
+++ b/src/IGBInstance.ts
@@ -49,6 +49,7 @@ export interface IGBInstance {
     whatsappBotKey: string;
     whatsappServiceNumber: string;
     whatsappServiceUrl: string;
+    whatsappServiceWebhookUrl: string;
     theme: string;
     ui: string;
     kb: string;