Unable to Download Invoices via API – Code 57 Authorization Error
I’m integrating the Zoho Billing API with the scopes ZohoInvoice.invoices.CREATE,ZohoInvoice.invoices.READ. I’ve completed the OAuth2 flow successfully, including generating the auth code, access token, and refresh token. All tokens are valid and fresh. However, when I attempt to download all invoices as a CSV file using Postman, I receive the following error: {"code": 57, "message": "You are not authorized to perform this operation"}. I’ve double-checked that I’m using the correct organization ID and making the request to the correct Zoho Billing endpoint. I also have admin rights on my Zoho account, so I believe permissions shouldn’t be an issue. Could this be a scope mismatch, or is there an additional permission or API configuration needed to perform this operation? Any help would be appreciated.
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