クーポンに登録出来る画像のフォーマットやサイズに制限はありますか?

ございます。
JPEG、PNG、GIF画像の登録が可能です。
画像サイズは、最大8MB前後を推奨しております。

Can I set an expiration date for the coupon?

The settings can be made from the Options menu.
The settings are uniform and cannot be set individually.
You can set the time period to 1 month, 3 months, 6 months, or 1 year after acquiring the coupon.

I would like to add a new coupon, but I cannot.

The number of coupons that can be set for each plan is fixed and new coupons cannot be added.
Please re-edit existing ones for use.

Bronze Plan

Coupons are only available when the stamp card is full.

Silver Plan


In addition to coupons only when the stamp card is full, only one coupon is available for any given number of stamps.

Gold Plan

Two coupons are available for any given number of stamps, in addition to a coupon only when the stamp card is full.

Are there any restrictions on the format or size of images that can be registered on a coupon?

Yes, there is.
JPEG, PNG, and GIF images can be registered.
We recommend a maximum image size of around 8 MB.