****ALERT**** Feb. 2/1/2022 Some current consumers may see 403 errors if your application is currently passing the key/secret for the auth call and/or passing the bearer token over in the query parameters. You will be required to make a change in your solution or your calls will keep failing. What needs to change in your integrated solution: When you make a call to a Paychex API resource end point, you need to provide an active bearer token within the 'Body' of your request.