diff --git a/contract-tests/TestHook.js b/contract-tests/TestHook.js
index 9cb2274f3..0c3457eb3 100644
--- a/contract-tests/TestHook.js
+++ b/contract-tests/TestHook.js
@@ -1,10 +1,11 @@
 import got from 'got';
 
 export default class TestHook {
-  constructor(name, endpoint, data) {
+  constructor(name, endpoint, data, errors) {
     this._name = name;
     this._endpoint = endpoint;
     this._data = data;
+    this._errors = errors;
   }
 
   async _safePost(body) {
@@ -23,6 +24,9 @@ export default class TestHook {
   }
 
   beforeEvaluation(hookContext, data) {
+    if(this._errors?.beforeEvaluation) {
+      throw new Error(this._errors.beforeEvaluation);
+    }
     this._safePost({
       evaluationSeriesContext: hookContext,
       evaluationSeriesData: data,
@@ -32,6 +36,9 @@ export default class TestHook {
   }
 
   afterEvaluation(hookContext, data, detail) {
+    if(this._errors?.afterEvaluation) {
+      throw new Error(this._errors.afterEvaluation);
+    }
     this._safePost({
       evaluationSeriesContext: hookContext,
       evaluationSeriesData: data,
@@ -39,6 +46,7 @@ export default class TestHook {
       evaluationDetail: detail,
     });
 
+
     return { ...data, ...(this._data?.['afterEvaluation'] || {}) };
   }
 }
diff --git a/contract-tests/sdkClientEntity.js b/contract-tests/sdkClientEntity.js
index c3891fad5..0734ba582 100644
--- a/contract-tests/sdkClientEntity.js
+++ b/contract-tests/sdkClientEntity.js
@@ -64,7 +64,7 @@ export function makeSdkConfig(options, tag) {
   }
   if (options.hooks) {
     cf.hooks = options.hooks.hooks.map(
-      (hook) => new TestHook(hook.name, hook.callbackUri, hook.data),
+      (hook) => new TestHook(hook.name, hook.callbackUri, hook.data, hook.errors),
     );
   }
   return cf;