/resources/campaign_budget.proto

--- v25/resources/campaign_budget.proto 2026-10-26 16:32:22.000000000 +0000
+++ v26/resources/campaign_budget.proto 2026-10-26 16:32:27.000000000 +0000
@@ -187,4 +188,16 @@
   // aligned with a bidding strategy, campaigns that are added to the campaign
   // budget must also use the aligned bidding strategy.
   int64 aligned_bidding_strategy_id = 31;
+
+  // Waterfall channel priorities and budget caps for this budget, at most one
+  // entry per advertising channel type. When unset, the customer-level
+  // defaults in `CustomerBudgetNetworkSetting` apply.
+  google.ads.googleads.v26.common.BudgetNetworkSettings
+      budget_network_settings = 32;
+
+  // Output only. Whether this budget is eligible for waterfall channel
+  // prioritization and budget caps, and if not, why.
+  google.ads.googleads.v26.common.BudgetNetworkEligibility
+      budget_network_eligibility = 33
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 }