①: Your Shopify Store Name. You also can find it in the URL of the browser, after you signed in to Shopify as follow.
Step 2. Click the “Create a new private app” button in the upper right corner of the new page.
Step 3. Fill and save the information required. Note that the “Orders, transactions and fulfillments” and “Products, variants and collections” in the “Admin API” need to select the “Read and write”, then EasyGull will help you inform your Shopify store of the fulfillments information through these APIs.
Step 4. Click “I understand, create the app” button in the new window.