diff --git a/docs/DeveloperGuide.md b/docs/DeveloperGuide.md
index 1a1251503dc..d57af7fc075 100644
--- a/docs/DeveloperGuide.md
+++ b/docs/DeveloperGuide.md
@@ -1171,6 +1171,14 @@ testers are expected to do more *exploratory* testing.
   - Appointment status is updated to "COMPLETED".
   - Success message confirms the status update.
 
+2. **Updating Status to Pending**
+
+- **Prerequisites**: Ensure an appointment exists on `01/01/2025` at `10:00`.
+- **Test case**: `updatestatus nric/S1234567D d/01/01/2025 start/10:00 status/pending`
+- **Expected**:
+  - Appointment status is updated to "PENDING".
+  - Success message confirms the status update.
+
 ---
 
 #### Deleting an Appointment