Customer Accounts MCP server: Authentication Failed with error The client credentials provided are invalid or missing

MCP & LLM
1

I am new to Shopify Development and I am trying to integrate Customer Accounts MCP Server with my under development app. When I create an authorization URL using OAuth 2.0. I am trying to install that on my Dev Store. This is the URL that I am creating:

```https://shopify.com/authentication/64084017214/oauth/authorize?client_id=9eba9c6c783a448516a9d1d3d0304e54&response_type=code&redirect_uri=https%3A%2F%2Fauth-hireninja.ap.ngrok.io%2Foauth%2Fshopify%2Fcallback&scope=customer-account-mcp-api%3Afull&state=a4b7f9d2c8e03e4a9c7b2e51e7d21a11&code_challenge=bPLxdbXkFRKlSNe1tefMBgBwIIO78sS9wgHNBRS7SCA&code_challenge_method=S256\`\`\`

I get an error: Something Went Wrong: The client credentials provided are invalid or missing.

I am sure that the Client ID is same as that of my dev app, and redirect URL matches the one.

Secondly, in my current app’s version I have these scopes: customer_read_companies,customer_write_companies,customer_write_customers,customer_read_customers,customer_read_draft_orders,customer_read_markets,customer_read_orders,customer_write_orders,customer_read_store_credit_account_transactions,customer_read_store_credit_accounts

I am not able to add customer-account-mcp-api:full in the app’s settings as this scope is not available. But I do see this scope well-known/openid-configuration returned supported scope.

I am not sure what I am doing wrong here. Any help will be highly appreciated.

2

Any update on this. I am still getting this issue:

Request ID : 7ecc2fa5-23b1-4f1f-83ec-6d574fd7e71d-1762438319