How to Fix “We Were Unable to Authenticate Your Request” When Connecting to Salesforce
If you receive the error message “We were unable to authenticate your request” when trying to connect Sales Connect to Salesforce, there might be a restriction on your access to Salesforce’s API. Check with your Salesforce Admin to make sure the following things are in place.
Enable API in User Permissions
Have a Salesforce Admin log into SFDC.
Select Manage Users.
Find the Profile that the ToutApp users are under and click Edit.
Scroll down to Administrative Permissions and make sure API Enabled is checked.
Check if Salesforce is Blocking Sales Connect from Connecting
Have a Salesforce Admin log in to SFDC.
Select Manage Apps.
Select Connected Apps OAuth Usage.
Make sure that Sales Connect shows “Block” next to it. If you see “Unblock”, click the button to unblock Sales Connect’s access to Salesforce.