do not send extra if empty

2 files changed, 2 insertions, 2 deletions

diff --git a/packages/merchant-backoffice-ui/src/paths/instance/orders/create/CreatePage.tsx b/packages/merchant-backoffice-ui/src/paths/instance/orders/create/CreatePage.tsx
index 52ee9d351..2b1741276 100644
--- a/packages/merchant-backoffice-ui/src/paths/instance/orders/create/CreatePage.tsx
+++ b/packages/merchant-backoffice-ui/src/paths/instance/orders/create/CreatePage.tsx
@@ -235,7 +235,7 @@ export function CreatePage({
         amount: order.pricing.order_price,
         summary: order.pricing.summary,
         products: productList,
-        extra: JSON.stringify(value.extra),
+        extra: undefinedIfEmpty(value.extra),
         pay_deadline: value.payments.pay_deadline
           ? {
             t_s: Math.floor(value.payments.pay_deadline.getTime() / 1000),
diff --git a/packages/merchant-backoffice-ui/src/utils/table.ts b/packages/merchant-backoffice-ui/src/utils/table.ts
index 71358e25f..db2b2021c 100644
--- a/packages/merchant-backoffice-ui/src/utils/table.ts
+++ b/packages/merchant-backoffice-ui/src/utils/table.ts
@@ -51,7 +51,7 @@ export function buildActions<T extends WithId>(
  */
 export function undefinedIfEmpty<
   T extends Record<string, unknown> | Array<unknown>,
->(obj: T): T | undefined {
+>(obj: T | undefined): T | undefined {
   if (obj === undefined) return undefined;
   return Object.values(obj).some((v) => v !== undefined) ? obj : undefined;
 }