From a403bc204fc9e19acf26eaa96dca8b8d0a2f776e Mon Sep 17 00:00:00 2001
From: Mark Slowey <mark.slowey1@nhs.net>
Date: Mon, 17 Aug 2026 09:39:16 +0100
Subject: [PATCH] add request and toUpdate context

---
 lambdas/supplier-allocator/src/handler/allocation-config.ts | 5 +++++
 lambdas/upsert-letter/src/handler/upsert-handler.ts         | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/lambdas/supplier-allocator/src/handler/allocation-config.ts b/lambdas/supplier-allocator/src/handler/allocation-config.ts
index f9e7f92d1..1f383645e 100644
--- a/lambdas/supplier-allocator/src/handler/allocation-config.ts
+++ b/lambdas/supplier-allocator/src/handler/allocation-config.ts
@@ -81,11 +81,16 @@ export async function preferredSupplierPack(
   packSpecificationIds: string[],
   deps: Deps,
 ): Promise<PackSpecification> {
+  // Constraints
   const eligiblePacks: string[] = await filterPacksForLetter(
     letterEvent,
     packSpecificationIds,
     deps,
   );
+
+  // No eligible packs -> REJECTED
+
+  // Check can a supplier fulfil the pack
   const preferredSupplierPacks: SupplierPack[] =
     await getPreferredSupplierPacks(eligiblePacks, suppliers, deps);
   const preferredPack: PackSpecification = await getPackSpecification(
diff --git a/lambdas/upsert-letter/src/handler/upsert-handler.ts b/lambdas/upsert-letter/src/handler/upsert-handler.ts
index fa49adb05..6baff1acb 100644
--- a/lambdas/upsert-letter/src/handler/upsert-handler.ts
+++ b/lambdas/upsert-letter/src/handler/upsert-handler.ts
@@ -56,6 +56,8 @@ function getOperationFromType(type: string): UpsertOperation {
             eventId: preparedRequest.id,
             letterId: letterToInsert.id,
             supplierId: letterToInsert.supplierId,
+            letterInsertRequest: request,
+            letterToInsert: letterToInsert,
           });
           // emit success metric
           emitIndividualMetric(
@@ -99,6 +101,8 @@ function getOperationFromType(type: string): UpsertOperation {
         eventId: supplierEvent.id,
         letterId: letterToUpdate.id,
         supplierId: letterToUpdate.supplierId,
+        letterUpdateRequest: request,
+        letterToUpdate: letterToUpdate,
       });
       emitIndividualMetric(
         deps.logger,