diff --git a/web/app/signin/components/sso-auth.tsx b/web/app/signin/components/sso-auth.tsx
index f48ace97e4a15d..c665433d305cc0 100644
--- a/web/app/signin/components/sso-auth.tsx
+++ b/web/app/signin/components/sso-auth.tsx
@@ -28,6 +28,8 @@ const SSOAuth: FC<SSOAuthProps> = ({
     if (protocol === SSOProtocol.SAML) {
       getUserSAMLSSOUrl(invite_token).then((res) => {
         router.push(res.url)
+      }).catch(() => {
+        toast.error(t('error.ssoFailed', { ns: 'login' }))
       }).finally(() => {
         setIsLoading(false)
       })
@@ -36,6 +38,8 @@ const SSOAuth: FC<SSOAuthProps> = ({
       getUserOIDCSSOUrl(invite_token).then((res) => {
         document.cookie = `user-oidc-state=${res.state};Path=/`
         router.push(res.url)
+      }).catch(() => {
+        toast.error(t('error.ssoFailed', { ns: 'login' }))
       }).finally(() => {
         setIsLoading(false)
       })
@@ -44,6 +48,8 @@ const SSOAuth: FC<SSOAuthProps> = ({
       getUserOAuth2SSOUrl(invite_token).then((res) => {
         document.cookie = `user-oauth2-state=${res.state};Path=/`
         router.push(res.url)
+      }).catch(() => {
+        toast.error(t('error.ssoFailed', { ns: 'login' }))
       }).finally(() => {
         setIsLoading(false)
       })
diff --git a/web/i18n/en-US/login.json b/web/i18n/en-US/login.json
index 87efaf5a234179..ad6700097eb965 100644
--- a/web/i18n/en-US/login.json
+++ b/web/i18n/en-US/login.json
@@ -28,6 +28,8 @@
   "error.invalidEmailOrPassword": "Invalid email or password.",
   "error.invalidRedirectUrlOrAppCode": "Invalid redirect URL or app code",
   "error.invalidSSOProtocol": "Invalid SSO protocol",
+  "error.ssoFailed": "SSO login failed. Please try again or contact your administrator.",
+  "error.unknown": "Something went wrong. Please try again.",
   "error.nameEmpty": "Name is required",
   "error.passwordEmpty": "Password is required",
   "error.passwordInvalid": "Password must contain letters and numbers, and the length must be greater than 8",