How to use dynamic variables in the variants?

SAP users must be running number of reports on a daily basis. There are number of selection parameters like dates and periods etc. are to be entered. Every time, entering these values must be cumbersome task. However, following small trick would let the system dynamically select the dates based on the values maintained in the variable of the variant.

Would like to run this report on a daily basis, however, the open items (open at key date) has to be dynamically changed when running, we can create variant with dynamic variables. Click on “save” button.

Give Name and Description and Variant Name.