diff --git a/src/request/RequestClient.ts b/src/request/RequestClient.ts
index 991b7a3..62a144e 100644
--- a/src/request/RequestClient.ts
+++ b/src/request/RequestClient.ts
@@ -10,6 +10,7 @@ import {
 } from '../types/errors'
 import { parseWeboutResponse } from '../utils/parseWeboutResponse'
 import { prefixMessage } from '@sasjs/utils/error'
+import { SAS9AuthError } from '../types/errors/SAS9AuthError'
 
 export interface HttpClient {
   get<T>(
@@ -470,6 +471,10 @@ export const throwIfError = (response: AxiosResponse) => {
     throw new AuthorizeError(response.data.message, authorizeRequestUrl)
   }
 
+  if (response.config?.url?.includes('sasAuthError')) {
+    throw new SAS9AuthError()
+  }
+
   const error = parseError(response.data as string)
 
   if (error) {
diff --git a/src/types/errors/SAS9AuthError.ts b/src/types/errors/SAS9AuthError.ts
new file mode 100644
index 0000000..2e3ad00
--- /dev/null
+++ b/src/types/errors/SAS9AuthError.ts
@@ -0,0 +1,9 @@
+export class SAS9AuthError extends Error {
+  constructor() {
+    super(
+      'The credentials you provided cannot be authenticated. Please provide a valid set of credentials.'
+    )
+    this.name = 'AuthorizeError'
+    Object.setPrototypeOf(this, SAS9AuthError.prototype)
+  }
+}