diff --git a/public/service-worker.js b/public/service-worker.js
index 38b9354..9252f3e 100644
--- a/public/service-worker.js
+++ b/public/service-worker.js
@@ -1,7 +1,7 @@
 const isLocalhost = self.location.hostname === "localhost" || self.location.hostname === "127.0.0.1";
 
 if (!isLocalhost) {
-  const STATIC_CACHE = "construction-delivery-static-v131";
+  const STATIC_CACHE = "construction-delivery-static-v132";
   const RUNTIME_CACHE = "construction-delivery-runtime-v119";
   const APP_SHELL_URLS = ["/", "/client", "/index.html", "/manifest.webmanifest", "/icons/icon-192.png", "/icons/icon-512.png"];
 
diff --git a/src/services/deliveryInvitationApi.js b/src/services/deliveryInvitationApi.js
index e041924..c5d3fdc 100644
--- a/src/services/deliveryInvitationApi.js
+++ b/src/services/deliveryInvitationApi.js
@@ -278,7 +278,7 @@ export const fetchDeliveryInvitation = async (token) => {
   }
 };
 
-export const confirmDeliveryChoice = async ({ token, deliveryDate, deliveryTime, deliveryType, pickupDate, pickupTimeSlot, deliveryAddress }) => {
+export const confirmDeliveryChoice = async ({ token, deliveryDate, deliveryTime, deliveryType, pickupDate, pickupTimeSlot, deliveryAddress, src }) => {
   if (isLocalClientInvitationToken(token)) {
     const baseInvitation = getCachedInvitation(token) ?? buildFallbackInvitation(token);
     const invitation = cacheInvitation({
diff --git a/src/services/deliveryInvitationApi.test.js b/src/services/deliveryInvitationApi.test.js
index 99086ee..ea1e264 100644
--- a/src/services/deliveryInvitationApi.test.js
+++ b/src/services/deliveryInvitationApi.test.js
@@ -169,10 +169,33 @@ describe("deliveryInvitationApi", () => {
       p_token: "token-1",
       p_delivery_date: "2026-04-01",
       p_delivery_time: "Первая половина дня",
+      p_delivery_type: "delivery",
+      p_pickup_date: null,
+      p_pickup_time_slot: null,
+      p_delivery_address: null,
+      p_src: null,
     });
     expect(invoke).not.toHaveBeenCalled();
   });
 
+  it("passes the channel the client came from (src) to the confirm RPC", async () => {
+    rpc.mockResolvedValueOnce({ data: { ok: true }, error: null });
+
+    await expect(
+      confirmDeliveryChoice({
+        token: "token-1",
+        deliveryDate: "2026-04-01",
+        deliveryTime: "Первая половина дня",
+        src: "sms",
+      }),
+    ).resolves.toEqual({ ok: true });
+
+    expect(rpc).toHaveBeenCalledWith(
+      "confirm_delivery_choice_by_token",
+      expect.objectContaining({ p_src: "sms" }),
+    );
+  });
+
   it("updates the local client invitation when confirmation falls back to cache", async () => {
     invoke.mockRejectedValueOnce(new Error("worker boot error"));
     await fetchDeliveryInvitation("client-flow-1001");