Forgot to tick "create payment medium" in when creating a payment run in F110

Hi there

I forgot to tick "create payment medium" in the pop up box when I started the payment run in F110. Now when I go to Menu->Environment->Payment medium->DME administration I get the green error "No data records found for these selection criteria" rather than the ability to save the file to be uploaded for payment. How can I now create the payment medium file?

Cheers

Paul