Reward images live on the Images tab of the reward's edit page, under the Reward menu. Each reward uses 4 files — a cover image and a detail image, each with a separate Thai and English version — and all 4 use the same dimensions, 750 × 520 px.

⚡ Quick Path: Reward → Reward Group List → View Rewards on the group's card → Edit on the reward's row → Images tab → upload the Cover image (EN + TH) → upload the Detail image (EN + TH) → Save

Requirements before you start

  • An account that can see the Reward menu — if it isn't in the left menu, ask an Admin on your team to grant access first.
  • A reward that already exists — this article covers adding images to an existing reward. If you haven't built one yet, read the How to Build Your First Reward article first, then come back.
  • 4 image files per reward — a cover (Thai + English) and a detail image (Thai + English). Every slot is 750 × 520 px, JPEG or PNG, up to 1 MB each.
  • No English artwork yet? Prepare a version with no text on it and use the same file in both slots for now — far better than leaving one empty.

The image sizes you need to prepare

Upload slotSizeWhere the customer sees it
Cover image — EN750 × 520 pxThe cover in the rewards list, for customers using English
Cover image — TH750 × 520 pxThe same cover, for customers using Thai
Detail image — EN750 × 520 pxThe top image on the reward's detail page, after the customer taps in
Detail image — TH750 × 520 pxThe same image, for customers using Thai

📌 Good to know: the cover and detail images share the same 750 × 520 px size but do different jobs, so don't use one file for both. The cover is shrunk down in the list, so it works best as a clean product shot with no small text. The detail image shows at full width, so it can carry details or conditions.

Upload reward artwork in 5 steps

1. Open the group the reward belongs to

In the left menu, click Reward, then Reward Group List. The reward groups appear as cards, each showing how many rewards it holds and how many are Published, Draft and Unpublished.

Find the card for the group your reward is in and click View Rewards at the bottom of the card. The Manage Categories button beside it opens categories, not the rewards themselves.

📌 Good to know: the rewards customers see and redeem themselves on the privilege page (Webapp / LINE LIFF) live in the All reward group only. The other groups serve their own modules, such as Targeted Campaign or Promotion, as each card states.

1.13.1 the Reward Group List page showing the top row of group cards — highlight the View Rewards button on the All reward card.
The reward group cards and the View Rewards button

2. Check the image column, then open the edit page

The page that opens is headed Reward Group Name: <group name> and lists every reward in that group.

The Image (cover | detail) column on the far right is your checking tool — it shows thumbnails of the cover and detail images, and any empty slot reads no image. Scan it to see at once which rewards are still missing artwork, before opening them one by one.

Find the reward's row and click Edit under its name. The same row also has Publish or Unpublish (depending on the status), Delete and Report — the button that leads to the image slots is Edit.

1.13.2 the reward list inside a group, showing the Reward Group Name heading and the Image (cover | detail) column with both thumbnail rows and no image rows — box the first row's Edit button and the image column.
The Edit button and the image column that shows which rewards still lack artwork

3. Open the Images tab

The page that opens is headed Edit Reward <Reward Code> with the reward's status badge beside it. Its settings are split across 4 tabs — Reward Info, Reward Settings, Images and Who sees this reward. Click Images.