Hi, thank you for your replies. I am already aware of the filename field. This will work but this would not create automatic unique reference number for the document and filename it.

Is there a way where there is like a software where you can set the parameters for your filenaming rules. For example, i have a client, and i am going to prepare for him a specific document, let's say a contract. Can I automatically create a reference filename for this document for easy retrieval in the future?