get analytics details for WhatsApp Business using the Cloud API

I'm trying to make a GET request to the Facebook Graph API to fetch analytics for a WhatsApp Business Account using Postman. The request is structured as follows:

https://graph.facebook.com/v21.0/{whatsapp-business-account-ID}?fields=analytics.start(1732672800).end(1732932000).granularity(DAY)&access_token={access-token} 

What I've Tried: Set the request type to GET. Added all the required query parameters (fields, start_time, end_time, granularity, access_token) in Postman. Checked that the access_token is valid with the right permissions (whatsapp_business_management). Problem: When I send the request, I get an error response:

json Copy code

{     "error": {         "message": "(#100) Tried accessing nonexisting field (analytics) on node type (WhatsAppBusinessPhoneNumber)",         "type": "OAuthException",         "code": 100,         "fbtrace_id": "XXXXXXXXXXXX"     } } 

What I Need:

Clarification on whether analytics is a valid field for a WhatsApp Business Account. How to set up this request correctly in Postman or any potential troubleshooting steps. Any additional permissions or API version considerations to make this work.

Additional Details:

Access token: Valid and has whatsapp_business_management permission. API version: v21.0 (can switch to another version if necessary). End goal: Retrieve analytics for a specific date range with daily granularity.