Login to your Shopify store and navigate to the "Apps" section in your dashboard
If you haven't already enabled custom app development, click on "Allow custom app development."
Enter a name for your app (e.g., "Marvel's App"), select your email under App developer, and click on "Create app."
Next, click on "Configure Admin API scopes" to set up API integration.
Scroll down to "Orders" and enable "read_orders" access.
Scroll down to "Products" and enable "read_products" access
Once you've enabled read access for Orders and Products, save the app by clicking on the "Save" button.
After saving, click on "Install app" and then "Install" from the pop-up window.
The "Admin API access token" required for the integration can be found under the API credentials section.
Copy the "Admin API access token" by clicking on the clipboard icon.
Under the Shopify section, click on "Connect."
Paste the "Admin API access token" you copied