Lookback API not finding data

[Anon Anon]

I'm using Postman to post a very simple query - in fact, the one in this blog: www.rallydev.com/blog/developer-product/analytics-20-announcing-lookback-api

When I execute the query, substituting my workspace and a known object ID, I just get this response:
{
  "_rallyAPIMajor": "2",
  "_rallyAPIMinor": "0",
  "Errors": [
    "Not Found"
  ],
  "Warnings": []
}

What am I doing wrong?

[SeshVeeraraghavan1363555]

Can you post a screenshot of the exact query if possible?

[Anon Anon]

Hi, thanks for getting back to me. Actually I sorted this over the weekend - the problem was between keyboard and chair - in other words I was being a dope!

So now starting to get some results back in Postman and go through the documentation more carefully to get what I need.

And when that's sussed, I somehow need to get it all working from within Excel, rather than from Postman!