Another improvement to our accounting software based on feedback from our customers:
Due to changes implemented by CardStream to their integration API, a preshared key is now mandatory when using CardStream as a payment processor. We have implemented the required changes to KashFlow in order to maintain support for the payment processor. This change is applicable to existing users as well as new users.
Users of CardStream will need to update their KashFlow card options by going to Settings > Card Options > Enter in the preshared key. You can access your preshared key via your CardStream Management Console.