I searched everything and can't find an appropriate answer - so I need your help!
My Process made with APS (Enterprise) starts with a form where the users can upload a contract (the id in that field is "contract"). Thing is, I want to unify that file to the filename "contract.docx".
Example: User uploads file "something.docx" and then it's published to ACS as "contract.docx".
For this I know I have to call the variable containing this file, but I can't find it - and the mess is that it is not stored in "contract", like all other variables from formfields are handled. In activiti-admin I can see the variable "contract" but it is "null".
So, do you know what to call exactly and further - how to change the filename?