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Merch Showroom Shopify Seller Vendor Sync App
Connect Your Shopify Store to Merch Showroom
This guide walks you through connecting your Shopify store to Merch Showroom using a Shopify Custom App. This setup is completed entirely inside your Shopify store admin and your Merch Showroom Seller Portal.
Merch Showroom Seller Portal Login
https://seller.merchshowroom.com/index.php?p=login
Important: You do not need a Shopify Partner account. All steps are completed inside your Shopify store admin.
Before You Start
- Access to your Shopify store admin
- Access to your Merch Showroom Seller Portal
- Ability to create custom apps inside Shopify
Step 1: Log into Your Shopify Store
- Sign in to your Shopify store admin.
- Go to Settings → Apps and sales channels.
- Click Develop apps.

Step 2: Create a Custom App
- Click Create an app.
- Name the app (example: Merch Showroom Sync).
- Click Create.

Step 3: Open App Configuration
Open the newly created app and go to the app configuration screen where URLs and API scopes are set.

Step 4: Copy URLs from Merch Showroom
- Log into the Merch Showroom Seller Portal.
- Go to Configuration → Seller Sync App Configuration.
- Copy the App URL.

Step 5: Paste App URL in Shopify
- Paste the App URL into both App URL and Preferences URL.
- Uncheck Embed app in Shopify admin.
- Do not change the Webhook API version.

Step 6: Add Redirect URLs
- Copy the Other URL from the Seller Portal.
- Paste both URLs into Redirect URLs.
- Separate the URLs with a comma.

Step 7: Add Required API Permissions
Paste the following scopes into the Scopes field:
write_assigned_fulfillment_orders,read_assigned_fulfillment_orders, read_fulfillments,write_fulfillments, read_inventory,write_inventory, read_locations, read_orders,write_orders, read_products,write_products, read_markets_home, read_customers,write_customers

Step 8: Save and Install
- Save the app configuration in Shopify.
- Copy the Client ID (API Key) and Secret.
- Paste them into the Seller Portal as API Key and Secret Key.
- Enter your Shopify store URL in the format of your-store-url.myshopify.com .
- Click Save & Install.

Troubleshooting
- Confirm the app was created under Settings → Apps → Develop apps.
- Confirm all required scopes are saved.
- Return to the Seller Portal and click Save & Install again.
Once installed, your Shopify store is successfully connected to Merch Showroom.
