/common/criteria.proto 

--- v24/common/criteria.proto   2026-09-23 01:11:54.000000000 +0000
+++ v25/common/criteria.proto   2026-09-23 01:12:01.000000000 +0000
@@ -981,3 +981,10 @@
   // a top-level condition.
   optional string expression_name = 2;
 }
+
+// Represents an entity bid criterion.
+message EntityBid {
+  // The ID specifying a particular travel entity, such as a hotel, a thing
+  // to do, or an event.
+  optional string item_code = 1;
+}