diff --git a/src/deep-resource/lib/Resource/Exception/SourceNotAvailableException.js b/src/deep-resource/lib/Resource/Exception/SourceNotAvailableException.js
index <HASH>..<HASH> 100644
--- a/src/deep-resource/lib/Resource/Exception/SourceNotAvailableException.js
+++ b/src/deep-resource/lib/Resource/Exception/SourceNotAvailableException.js
@@ -12,6 +12,6 @@ export class SourceNotAvailableException extends Exception {
    * @param {Action|*} action
    */
   constructor(type, action) {
-    super(`The ${type} source is not available for ${action.fullName}`);
+    super(`The ${type} source is not available for the resource '${action.fullName}'`);
   }
 }
Fix validation bootstrap and implement request source validation