Power BI Desktop - Unable to pull from OData feed using Token authentication

Hi r_beacroft,

If you connect to OData feed using the following entry, and then enter your password, are you able to get desired result?

If not, add a new blank query in Power BI Desktop, then paste one of the following codes in Advanced Editor and check if you get expected result.

let 
Source = OData.Feed("URL", null, [Headers = [Authorization = "Bearer Your token" ] ])
in
Source

let    
Source = Web.Contents("URL", [Headers=[#" Authorization  " = "Bearer Your token"]])
in
Source

There are a similar thread and blog for your reference.
http://stackoverflow.com/questions/33225590/authenticating-with-excel-power-query-against-net-odata-web-api
http://angryanalyticsblog.azurewebsites.net/index.php/2016/05/16/api-strategies-with-power-bi/

Thanks,
Lydia Zhang