diff --git a/actions/postnotice.php b/actions/postnotice.php
index f092d54d1d..ad3f00e349 100644
--- a/actions/postnotice.php
+++ b/actions/postnotice.php
@@ -74,6 +74,14 @@ class PostnoticeAction extends Action
             $srv = new OMB_Service_Provider(null, omb_oauth_datastore(),
                                             omb_oauth_server());
             $srv->handlePostNotice();
+        } catch (OMB_RemoteServiceException $rse) {
+            $msg = $rse->getMessage();
+            if (preg_match('/^Revoked accesstoken/', $msg) ||
+                preg_match('/^No subscriber/', $msg)) {
+                $this->clientError($msg, 403);
+            } else {
+                $this->clientError($msg);
+            }
         } catch (Exception $e) {
             $this->serverError($e->getMessage());
             return;
diff --git a/actions/updateprofile.php b/actions/updateprofile.php
index dfc31f5427..44fafdd926 100644
--- a/actions/updateprofile.php
+++ b/actions/updateprofile.php
@@ -77,6 +77,14 @@ class UpdateprofileAction extends Action
             $srv = new OMB_Service_Provider(null, omb_oauth_datastore(),
                                             omb_oauth_server());
             $srv->handleUpdateProfile();
+        } catch (OMB_RemoteServiceException $rse) {
+            $msg = $rse->getMessage();
+            if (preg_match('/^Revoked accesstoken/', $msg) ||
+                preg_match('/^No subscriber/', $msg)) {
+                $this->clientError($msg, 403);
+            } else {
+                $this->clientError($msg);
+            }
         } catch (Exception $e) {
             $this->serverError($e->getMessage());
             return;