How to integrate BigCommerce
You will need your Store Hash. It is a part of your BigCommerce store URL for example: https://store-yfsbgr5y38.mybigcommerce.com stores hash key is yfsbgr5y38.
To get your Client ID and Access Token you will need to create an API Account.
First go to your Bigcommerce Store > Advanced Settings > API Accounts.
Press “Create API Account”
Name the account “Multiorders” and switch API OAuth Scopes to “modify”
You will now receive BigCommerce API Credentials keys which are available only once.
Please copy these, you will need them to finish your BigCommerce integration for Multiorders.
Put in the BigCommerce API Credential keys. You will need the Client ID and Access Token keys