Looking for Button Automation Solution

We have a URL button that generates PDF statements.  With hundreds of customers that we run statements for each month, we are looking for a way to automate this URL button.   Ive seen many asks in this nature over the last couple of years in discussions, has anyone come up with a solution.  We cant schedule based on a date as that we dont always have data ready at the same time each month.  Looking to automate on demand if that makes sense.

------------------------------
Michael Knecht
------------------------------