What is the SP-API?
Amazon Selling Partner API (SP-API) gives authorized apps like niche.ltd read-only access to your Seller Central data — orders, inventory, fees, and financials.
Prerequisites
- An active Amazon Seller Central account (Individual or Professional)
- niche.ltd account (any plan)
Step-by-Step Authorization
- Go to Settings → Amazon SP-API in niche.ltd
- Click Connect Store
- You'll be redirected to Seller Central — log in and click Authorize
- Choose the marketplaces you want to sync
- Click Confirm — authorization completes in seconds
What Data Is Synced?
| Data Type | Sync Frequency |
|---|---|
| Orders | Every 15 minutes |
| Inventory | Hourly |
| FBA Fees | Daily |
| Financials | Daily |
Troubleshooting
"Authorization failed" — Make sure you are logged in as the account owner, not a secondary user.
"No data after 24 hours" — Check that your Seller Central account has at least one active listing.