diff --git a/inc/class.schedule.php b/inc/class.schedule.php
--- a/inc/class.schedule.php
+++ b/inc/class.schedule.php
@@ -918,6 +918,7 @@ class Schedule
 	. '<p id="created-time">' . PHP_EOL
 	. '  Created <span class="cute-time">' . gmdate('c', $this->created) . '</span>.' . PHP_EOL
 	. '</p>' . PHP_EOL;
+    echo '<p><em>Please note that a saved schedule may have fallen out of sync with the course schedule as published by your registrar. To ensure that you are using up-to-date information, <a href="input.php">recreate your schedule</a>.</em></p>' . PHP_EOL;
 
     $outputPage->foot();
   }
diff --git a/input.php b/input.php
--- a/input.php
+++ b/input.php
@@ -274,7 +274,7 @@ if (!empty($_REQUEST['selectsemester']))
   To get started, enter in a course identifier (e.g., <em>
   <?php echo empty($semester) || empty($semester['popular_course_id']) ? school_example_course_id($inputPage->get_school()) : $semester['popular_course_id']; ?></em>)
   and click the autosuggestion to automatically load available sections
-  for each class.
+  for each class. (Please note that autosuggestion data may occasionally fall out of sync with your registrar’s records).
   <?php else: ?>
   To get started, enter a course number and add some sections to it.
   Then specify each section's letter/number and what times it meets,