Can't connect to the API

I'm very familiar with API integration / coding / etc. But I seem to be unable to get past the first step of connecting to the Zoho API.

I believe I've taken the necessary steps as per:

https://www.zoho.com/accounts/protocol/oauth/self-client/authorization-code-flow.html

1) Create an application and generate code (using https://api-console.zoho.com)

I used "Self Client", scope = ZohoCRM.modules.ALL, time duration = 10 minutes

2) Get access_token

POST https://accounts.zoho.com/oauth/v2/token

form-data: grant_type = authorization_code, client_id = xxx, client_secret = xxx, code = xxx

RESULT:

{

"access_token": "xxxx",

"refresh_token": "xxxx",

"scope": "ZohoCRM.modules.ALL",

"api_domain": "https://www.zohoapis.com",

"token_type": "Bearer",

"expires_in": 3600

}

3) Try to make an API request:

https://www.zohoapis.com/crm/v7/settings/modules

HEADER: Authorization = <access_token from previous step>

ERROR RECEIVED:

{

"code": "OAUTH_SCOPE_MISMATCH",

"details": {},

"message": "invalid oauth scope to access this URL",

"status": "error"

}

Any help would be greatly appreciated.

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