I am trying to connect from Salesforce Commerce to Square Payment gateway via Oauth flow and getting this error. How ever , in the named credential if I use no-authentication then able to connect to Square.
“You don’t have permission to view this data. Ask your administrator to set up authentication for the external data source.”
Do you mind elaborating on the end goal of the connection you’re making? Can you expand on what step of the OAuth flow you’re getting an error? Thanks!