In order to make the integration possible you will need to create API account. This will grant you access to API token and store hash that are needed for the integration.
Go to your BigCommerce site's dashboard and select Advanced Settings → API Accounts.
Click on Create API Account and select Create V2/V3 API Token.
Give a name for the API account.
Your stores store hash can be found between slashes in section API Path. Copy this hash and save it. It is needed in the integration.
You can manage your API account's authorization scopes. It is advised to grant modify status for all the sections in order for the integration to work smoothly. Change at least Content, Orders, Order Transactions and Products to modify state.
Once you have stored the store hash and selected authorization scopes for the API account click Save.
BigCommerce API Credentials page will open. Copy the Access Token from this page.This is needed for the integration.
Note! This page will not be accessible after you close it.
After you have copied the Access Token click Done. Your browser should automatically download text-file that also contains the token and store hash.
Go to myOGO Edit merchant page and select Integrations. Click on New integration and select BigCommerce from the list.
Remember to save your changes and to enable scheduled latest changes update after the goods are in stock. You can test your integration by pressing Test button.
Once the integration is installed, go to the Products → Sync webshop products. If the products are not yet visible, click Refresh.
When the products are visible on the BigCommerce side of the page, click on all, or the desired products, to create them in myOGO. Read more about the product sync page.
When the physical products arrive at the warehouse, the stock amounts will be visible in both myOGO and BigCommerce.
Read also about setting up shipping methods.