From 4c282ea9caf11224238f071de57bd6a70671b989 Mon Sep 17 00:00:00 2001
From: Peer Richelsen <peeroke@gmail.com>
Date: Fri, 19 Dec 2025 12:57:13 +0100
Subject: [PATCH] feat: add promotion codes support to SMS credit purchases
 (#23774)

Co-authored-by: peer@cal.com <peer@cal.com>
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: CarinaWolli <wollencarina@gmail.com>
Co-authored-by: Anik Dhabal Babu <81948346+anikdhabal@users.noreply.github.com>
---
 .../billing/service/billingProvider/StripeBillingService.ts   | 4 +++-
 .../trpc/server/routers/viewer/credits/buyCredits.handler.ts  | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/features/ee/billing/service/billingProvider/StripeBillingService.ts b/packages/features/ee/billing/service/billingProvider/StripeBillingService.ts
index 5c1d2e44e1..c1bbda7262 100644
--- a/packages/features/ee/billing/service/billingProvider/StripeBillingService.ts
+++ b/packages/features/ee/billing/service/billingProvider/StripeBillingService.ts
@@ -44,8 +44,9 @@ export class StripeBillingService implements IBillingProviderService {
     successUrl: string;
     cancelUrl: string;
     metadata?: Record<string, string>;
+    allowPromotionCodes?: boolean;
   }) {
-    const { priceId, quantity, successUrl, cancelUrl, metadata } = args;
+    const { priceId, quantity, successUrl, cancelUrl, metadata, allowPromotionCodes = true } = args;
 
     const session = await this.stripe.checkout.sessions.create({
       line_items: [{ price: priceId, quantity }],
@@ -53,6 +54,7 @@ export class StripeBillingService implements IBillingProviderService {
       success_url: successUrl,
       cancel_url: cancelUrl,
       metadata: metadata,
+      allow_promotion_codes: allowPromotionCodes,
       invoice_creation: {
         enabled: true,
       },
diff --git a/packages/trpc/server/routers/viewer/credits/buyCredits.handler.ts b/packages/trpc/server/routers/viewer/credits/buyCredits.handler.ts
index f8dbab855f..f10e3a3d35 100644
--- a/packages/trpc/server/routers/viewer/credits/buyCredits.handler.ts
+++ b/packages/trpc/server/routers/viewer/credits/buyCredits.handler.ts
@@ -77,6 +77,7 @@ export const buyCreditsHandler = async ({ ctx, input }: BuyCreditsOptions) => {
     quantity,
     successUrl: redirectUrl,
     cancelUrl: redirectUrl,
+    allowPromotionCodes: true,
     metadata: {
       ...(teamId && { teamId: teamId.toString() }),
       userId: ctx.user.id.toString(),