diff --git a/packages/api/src/middleware/tracking.ts b/packages/api/src/middleware/tracking.ts
index 1e671e8cf..405a4527a 100644
--- a/packages/api/src/middleware/tracking.ts
+++ b/packages/api/src/middleware/tracking.ts
@@ -52,6 +52,9 @@ class Tracker {
           sql`coalesce((data->'lastSeen')::bigint, 0) < ${lastSeen}`,
         ],
         { lastSeen },
+        // lastSeen is best-effort: the record may have been deleted since the
+        // token was last seen, so a no-op update is not an error.
+        { throwIfEmpty: false },
       );
     } catch (err) {
       console.log(
diff --git a/packages/api/src/store/table.ts b/packages/api/src/store/table.ts
index 2806945bd..0be206120 100644
--- a/packages/api/src/store/table.ts
+++ b/packages/api/src/store/table.ts
@@ -251,7 +251,11 @@ export default class Table<T extends DBObject> {
     }
 
     if (res.rowCount < 1 && throwIfEmpty) {
-      throw new NotFoundError(`${this.name} id=${doc.id} not found`);
+      // When query is an array of SQL conditions, doc may not contain an id.
+      // Fall back to a generic message to avoid misleading "id=undefined" errors.
+      const idHint =
+        typeof query === "string" ? query : (doc as any).id ?? "(unknown)";
+      throw new NotFoundError(`${this.name} id=${idHint} not found`);
     }
     return res;
   }