diff --git a/demo/src/main/java/com/google/android/fhir/demo/PatientListFragment.kt b/demo/src/main/java/com/google/android/fhir/demo/PatientListFragment.kt
index 080dba3579..de218bfd46 100644
--- a/demo/src/main/java/com/google/android/fhir/demo/PatientListFragment.kt
+++ b/demo/src/main/java/com/google/android/fhir/demo/PatientListFragment.kt
@@ -189,7 +189,14 @@ class PatientListFragment : Fragment() {
         patientListViewModel.searchPatientsByName(searchView.query.toString().trim())
         fadeOutTopBanner(currentSyncJobStatus)
       }
-      CurrentSyncJobStatus.Cancelled -> TODO()
+      is CurrentSyncJobStatus.Cancelled -> {
+        Timber.i("Sync: Cancelled")
+        fadeOutTopBanner(currentSyncJobStatus)
+      }
+      is CurrentSyncJobStatus.Blocked -> {
+        Timber.i("Sync: Blocked")
+        fadeOutTopBanner(currentSyncJobStatus)
+      }
     }
   }
 
@@ -220,7 +227,14 @@ class PatientListFragment : Fragment() {
         patientListViewModel.searchPatientsByName(searchView.query.toString().trim())
         fadeOutTopBanner(periodicSyncJobStatus.currentSyncJobStatus)
       }
-      CurrentSyncJobStatus.Cancelled -> TODO()
+      is CurrentSyncJobStatus.Cancelled -> {
+        Timber.i("Sync: Cancelled")
+        fadeOutTopBanner(periodicSyncJobStatus.currentSyncJobStatus)
+      }
+      is CurrentSyncJobStatus.Blocked -> {
+        Timber.i("Sync: Blocked")
+        fadeOutTopBanner(periodicSyncJobStatus.currentSyncJobStatus)
+      }
     }
   }
 
diff --git a/engine/src/main/java/com/google/android/fhir/sync/Sync.kt b/engine/src/main/java/com/google/android/fhir/sync/Sync.kt
index 47cf9f0e1e..ed8520f7fe 100644
--- a/engine/src/main/java/com/google/android/fhir/sync/Sync.kt
+++ b/engine/src/main/java/com/google/android/fhir/sync/Sync.kt
@@ -24,6 +24,7 @@ import androidx.work.ExistingWorkPolicy
 import androidx.work.OneTimeWorkRequest
 import androidx.work.PeriodicWorkRequest
 import androidx.work.WorkInfo
+import androidx.work.WorkInfo.State.BLOCKED
 import androidx.work.WorkInfo.State.CANCELLED
 import androidx.work.WorkInfo.State.ENQUEUED
 import androidx.work.WorkInfo.State.FAILED
@@ -309,7 +310,7 @@ object Sync {
         }
           ?: error("Inconsistent terminal syncJobStatus.")
       CANCELLED -> Cancelled
-      else -> error("Inconsistent WorkInfo.State: $workInfoState.")
+      BLOCKED -> CurrentSyncJobStatus.Blocked
     }
 
   /**
@@ -328,6 +329,7 @@ object Sync {
           ?: Enqueued
       }
       CANCELLED -> Cancelled
+      BLOCKED -> CurrentSyncJobStatus.Blocked
       else -> error("Inconsistent WorkInfo.State in periodic sync : $workInfoState.")
     }
 
diff --git a/engine/src/main/java/com/google/android/fhir/sync/SyncJobStatus.kt b/engine/src/main/java/com/google/android/fhir/sync/SyncJobStatus.kt
index c74644d0dc..b3b18efbba 100644
--- a/engine/src/main/java/com/google/android/fhir/sync/SyncJobStatus.kt
+++ b/engine/src/main/java/com/google/android/fhir/sync/SyncJobStatus.kt
@@ -87,6 +87,9 @@ sealed class CurrentSyncJobStatus {
 
   /** State indicating that the synchronization operation is canceled. */
   object Cancelled : CurrentSyncJobStatus()
+
+  /** State indicating that the synchronization operation is blocked. */
+  data object Blocked : CurrentSyncJobStatus()
 }
 
 /**