Connect a LINE Official Account (Messaging API)

Enter your LINE OA's Channel ID, Channel secret and long-lived Channel access token in SellerTiger to send broadcasts from SellerTiger and automatically read friend counts, this month's quota and broadcast results. It's free and self-serve; each OA is connected separately.

Two rules to remember first#

Warning: the webhook belongs to your store platform (for example Shopline). Don't change it. Leave Webhook URL, Use webhook and Verify on the LINE Developers → Messaging API page alone. SellerTiger doesn't use the webhook and never reads or changes it; changing it breaks Shopline's LINE features (order notifications, chat).

Warning: don't click "Reissue" on a token that's in use. A channel has only one long-lived Channel access token. According to LINE, reissuing invalidates the current long-lived token. If Shopline or another system already uses it, clicking Reissue disconnects them immediately. If the page already shows a token, just copy the existing token; click Issue only when the token field is empty (never issued).

What you get#

• Broadcasts: broadcasts created in the LINE module are sent from the OA you pick; each friend who receives one counts as 1 message against this month's quota. Live broadcasts go through approval.
• Friends: daily friend count, targetable reach and blocks (LINE provides the previous day's data). Friend counts for a connected OA can no longer be entered by hand.
• Quota: this month's message quota and usage.
• Broadcast results: delivered, opened and clicked, read after sending (LINE only provides stats when a broadcast reaches ≥20 people).

Before you start#

• Who does it: someone with level-4 access to Settings or level 4 for LINE in SellerTiger; on the LINE side, an admin of the OA who also has the Admin role in its Provider.
• Brands & channels: the brand already has the LINE OA social channel.
• Plan: the number of LINE OA accounts is limited by your plan (up to 30).
• Server switch: real sending requires live LINE sending to be switched on on the SellerTiger server; until then every send is a "dry run" and nothing actually goes to LINE.

Step 1 · Credentials: get the Channel ID, Channel secret and long-lived token from LINE#

If the OA doesn't have the Messaging API enabled yet (checked against LINE's official docs on 2026-10-17: you can no longer create a Messaging API channel directly in LINE Developers; you have to start from the OA):

1. Open manager.line.biz (LINE Official Account Manager) and pick your OA.
2. Top right Settings (การตั้งค่า) → left menu Messaging API → Enable Messaging API (เปิดใช้งาน Messaging API).
3. Pick or create a Provider and confirm. The Provider can't be changed once chosen, so pick your company's shared Provider.

Get the credentials:

1. Open developers.line.biz/console and sign in with the LINE account that manages the OA.
2. Pick the Provider → the OA's Messaging API channel.
3. Basic settings tab: copy the Channel ID (a number) and the Channel secret.
4. Messaging API tab, scroll to the bottom to Channel access token (long-lived):
   • There's already a token → just copy it, don't click Reissue;
   • It's empty → click Issue and copy it.
5. Don't touch Webhook settings on this page.

Keep all three values secret: anyone with the token can send messages as your OA.

Step 2 · Encryption / Webhook: don't change#

SellerTiger doesn't need a webhook. Leave Shopline's (or your store platform's) settings as they are.

Step 3 · Permissions: not needed#

The Messaging API needs no extra permissions or review.

Step 4 · Callback: not needed#

Step 5 · Add the OA in SellerTiger and enter the token#

1. Settings → Connections → "Communication" → LINE OA. The top of the window lists each brand's LINE OA channels.
2. Click Add LINE OA (or click an existing account's card).
3. Account: Name, Basic ID (@xxxx), Brand, color; tick Default account and Active if needed.
4. Messaging API: enter Channel ID, Channel secret, Channel access token (long-lived) → Save. Saved values show "Saved … — leave empty to keep".
5. Optional Buy links & testers: LINE shop URL, website URL (Shopline), UTM; for Test recipients, enter LINE user IDs (start with U, 33 characters in total; you can see your own under "Your user ID" at the bottom of LINE Developers → Basic settings; testers must add this OA as a friend first).

Step 6 · Turn on sync: verify#

LINE OA has no "Test connection" button; use sync to verify:

1. In the account window, click Sync friends & quota.
2. Success: the card shows the OA name (@basic id), friend count and "used / this month's quota", the token tag reads API connected, and it shows "Synced just now".
3. Send a test first: LINE broadcasts → Sandbox → pick a test recipient → Send test. If live sending isn't switched on on the server, the top of the page says nothing will really be sent to LINE, and the record is marked "dry run".
4. Live broadcast: New broadcast → Edit → Submit for approval → a manager / the founder approves → it goes out at the scheduled time.
5. Friends and broadcast results are read automatically every day (change the frequency in Data Center → LINE → LINE Official Account).

Troubleshooting#

Advanced: legacy single-account keys are an early workspace-wide token, used only when the default account has no token. For new setups, enter keys per account.