When trying to check in a client file in MYOB Banklink Practice or Banklink books sent via email, you might see the error MYOB BankLink File Handler - BankLink cannot handle your request at the moment, please try again later.[4]
This occurs even if your Banklink version and BK5 file are upgraded to the same version.
We're aware of this issue and working on a solution.
Until this is fixed, you can
check in your client files manually or
open Banklink first and then double click on the file which you've saved on the desktop.