Connect BigSeller (ERP)

BigSeller is the data bridge for shops that aren't connected directly yet (Shopee, Lazada, TikTok Shop, Shopline, LINE MyShop…). Once connected, SellerTiger pulls products → stock → orders → settlements automatically every day (read-only).

What you get#

• Data: products and images, stock and daily stock snapshots, orders (incremental by update time), settlement details. Covers every shop BigSeller manages.
• Frequency: daily at 06:00 (Bangkok time) by default. Change it to hourly / weekly / off in Data Center → Orders → BigSeller, or click Run now.
• First run: pulls the last 60 days and is slow (see the rate limit below). If it's interrupted, the next run picks up where it left off.
• Lock: while BigSeller is connected, manual BigSeller imports are locked (to avoid duplicates); for directly connected shops (e.g. Shopify), BigSeller no longer writes their orders.
• SellerTiger never changes orders, stock or prices in BigSeller.

Before you start#

• Who does it: someone with level-4 access to Settings in SellerTiger (the founder by default).
• BigSeller's API is a paid service that needs approval. BigSeller has no self-serve open platform: contact BigSeller (your account manager or support) and apply for the "API access service". Once approved, BigSeller sends you an "API documentation" file; the access credentials at the top contain the app_id and app_key. (Checked against the official BigSeller blog on 2026-10-17: the API access service must be requested from BigSeller.)
• Don't upgrade your BigSeller plan to "speed it up". BigSeller allows 1 request per second per endpoint regardless of plan; SellerTiger already queues requests at that rate.
• SellerTiger must be opened on an https address (app.sellertiger.com) for the authorization redirect to work.

Step 1 · Credentials: enter app_id and app_key in SellerTiger#

1. Find the access credentials at the top of the API documentation BigSeller sent you: app_id and app_key.
2. SellerTiger → Settings → Connections → "ERP & accounting" → BigSeller.
3. Under Keys:
   • app_id → enter it in the bigseller_app_key field → Save
   • app_key (the signing key) → enter it in the bigseller_app_secret field → Save
   • Don't swap the two fields. After saving, each row shows "Set here" and the first and last few characters, masked.
4. Click Test connection: keys saved — not authorized yet is normal; authorize in the next step.

Step 2 · Encryption / Webhook: not needed#

Step 3 · Permissions: enabled by BigSeller for the access scope you applied for#

If one kind of data (settlements, for example) stays empty, ask BigSeller to confirm your API access scope includes it.

Step 4 · Callback: automatic#

SellerTiger sends the callback URL https://app.sellertiger.com/api/bigseller/callback automatically; you don't enter it in BigSeller.

Step 5 · Authorize: approve in BigSeller#

1. In the same window, scroll down to BigSeller authorization & sync and click Authorize at BigSeller.
2. Sign in on the BigSeller page and approve. You're sent back to SellerTiger with a success message.
3. The authorization link is valid for 15 minutes and works only once; if it expires, click the button again.

What success looks like: status Authorized, "Token valid until X (renews automatically)", and the BigSeller tile in Connections turns Connected. The token is valid for 7 days and renews automatically when less than 12 hours remain; nothing to do.

Step 6 · Turn on sync#

1. Click Sync everything now; you'll see "Sync started (products → stock → orders → settlement); the Data Center updates when done".
2. Check progress and results in Data Center → Orders → BigSeller (transitional ERP): last run, record counts, the last-7-days cells.
3. When it's done, check Orders and Inventory: orders show their shop and platform, and stock matches BigSeller; GMV on the Business overview is no longer 0.
4. If orders show shops "Found in orders but not registered in Brands & channels", click Register to add them as sales channels.

Why the first run is slow#

BigSeller allows each endpoint only 1 call per second. SellerTiger spaces calls a little over 1 second apart and runs them in order; on "too many requests" it waits and retries (up to 4 times). Settlement details for 60 days of about 6,000 orders take roughly 10–20 minutes. After that, the daily increments are small. This isn't a plan issue: upgrading your BigSeller plan won't make it faster.

No API yet: use BigSeller export files#

While your API application is pending, you can export files from BigSeller and import them: Data Center → Orders → BigSeller → Upload myself → orders (in BigSeller: Orders → Order processing → Export → Export by SKU), stock, product SKUs, discontinued list, settlement details. Once the API is connected, imports are locked; the founder can backfill history from before the API connection.

Revoke authorization#

Click Remove authorization in the window and confirm "BigSeller stops syncing and imports open again." Data already synced is kept.

Troubleshooting#