Help centre / Connect a store

How to connect BigCommerce: step by step

Create a store-level API account and paste its token and store hash. About 4 minutes.

Last reviewed 2026-11-11

You need: the store owner login. Connecting needs Starter or above. Applying a price to your store needs Premium or above.

Step 1. Create the API account

  1. 1In BigCommerce admin open Settings, then API, then Store-level API accounts.
  2. 2Click Create API account, then Create V3/V2 API token.
  3. 3Name: CostCal Pro.
  4. 4Under OAuth scopes set Products to modify. Leave the rest at None.
  5. 5Click Save.
  6. 6Copy the Access token now. It is shown only once. You can also download the file.

Step 2. Find your store hash

On the same screen look at API path. It looks like https://api.bigcommerce.com/stores/abc123xyz/v3/. The letters between stores/ and /v3 are your store hash. Here it is abc123xyz.

Step 3. Paste it into CostCal Pro

  1. 1Open the Stores tab and choose BigCommerce.
  2. 2Paste the Store hash and the Access token.
  3. 3Click Connect store.

Prices are applied to the whole product.

Try it on your own product

The Free plan never expires and needs no card.

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