diff --git a/src/lib/server/order-delivery-note-link-service.ts b/src/lib/server/order-delivery-note-link-service.ts
index 2766ab8..067074a 100644
--- a/src/lib/server/order-delivery-note-link-service.ts
+++ b/src/lib/server/order-delivery-note-link-service.ts
@@ -45,7 +45,7 @@ const WINDOW_DAYS = 60;
  *  so 200 candidates keeps the filter at ~8 KB — at the limit. Using
  *  200 still collapses ~190 individual fetches per chunk while keeping
  *  every individual filter comfortably parseable. */
-const BULK_FILTER_CHUNK_SIZE = 200;
+const BULK_FILTER_CHUNK_SIZE = 100;
 
 // Per 2026-08-30 business decision: match against a DN of ANY status,
 // including `cancelled` (previously excluded along with a hardcoded
diff --git a/src/lib/server/order-order-duplicate-link-service.ts b/src/lib/server/order-order-duplicate-link-service.ts
index 82236ac..5b87910 100644
--- a/src/lib/server/order-order-duplicate-link-service.ts
+++ b/src/lib/server/order-order-duplicate-link-service.ts
@@ -34,7 +34,7 @@ const WINDOW_DAYS = 60;
  *  roughly 30 chars (`order = "<15-char-id>" || `), so 200 candidates
  *  keeps the filter at ~6 KB — comfortably under the limit while still
  *  collapsing ~190 individual fetches per chunk. */
-const BULK_FILTER_CHUNK_SIZE = 200;
+const BULK_FILTER_CHUNK_SIZE = 100;
 
 export type OrderDuplicateMatchMethod = "exact_items_same_company" | "no_match";