Just to double check, you’re trying to access the trial balance APIs described in these docs, right? FreeAgent Trial Balance API docs
From what I can tell, these APIs always need a subdomain to be set, so that they know which company to fetch the trial balances from.
The subdomain can be set depending on the kind of App you created in the Dev Dashboard. If you ticked the “Enable Accountancy Practice API” checkbox as described in the Accountancy Practice API documentation, then you might have to pass in the subdomain of the company you want to export from as a HTTP header.
Thanks for the reply. That does look like the correct way to pass the subdomain in when authenticated as an account manager.
It would be great to get a few more details so that we could look into this further. As this is a public forum, would you be so kind as to email support@freeagent.com with your account details and reference to this post, so that we could try to get to the bottom of this.