Create an app and obtain the API Access Token
Settings → Apps and sales channels → Develop apps
Click Create an app
Enter an App name and then click Create app
Click Configure Admin API scopes to grant access permission, and make sure the following permissions are included.
read_fulfillments, write_fulfillments,
write_inventory, read_inventory,
read_locations,
write_merchant_managed_fulfillment_orders, read_merchant_managed_fulfillment_orders, read_customers,
read_assigned_fulfillment_orders, write_assigned_fulfillment_orders,
read_orders, read_order_edits,
read_products,
write_shipping, read_shipping,
write_third_party_fulfillment_orders, read_third_party_fulfillment_orders,
write_custom_fulfillment_services, read_custom_fulfillment_services
Then Navigate to API credentials to obtain the API access token.
Paste the access token to the Shopify store setting in the custom setting.
