GoHighLevel API -- "The token does not have access to this location." Error

Questions
1

Hi Folk,

I’m getting a:
Failed to fetch contacts: {“statusCode”:403,“message”:“The token does not have access to this location.”}

after successfully completing the oAuth process with a selected Sub-Account. I’ve checked that the Location id in the call is the same as that of the Sub-Account.

This is driving me crazy and any help would be appreciated