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How to Get Shopify API Permissions
1. Go to My Store, click on Apps.
2. Click on Develop Apps .
3. Click on Allow custom app development.
4. Click on Create an app.
5. Fill in the App name , and click on Create app.
6. Click on API credentials, and get the API key.
7. Click on Configuration and configure permissions.
8. You need to check the following permissions:
1) read_content、write_content;
2)read_themes、write_themes;
3)read_products、write_products;
4)read_customers、write_customers;
5)read_orders、write_orders;
6)read_fulfillments、write_fulfillments;
7)read_shipping、write_shipping;
8)read_inventory、write_inventory;
9) read_locations;
10)read_assigned_fulfillment_orders、write_assigned_fulfillment_orders;
11)read_third_party_fulfillment_orders、write_third_party_fulfillment_orders;
9. Click on Install app.