Can DocuGen generate documents in bulk?

Yes, it can!

Let's say you would like to generate a number of documents in bulk using data from your monday.com board. For example, you may have a board containing 20 rows representing 20 customers, and would like to create 20 “Thank You” letters for all 20 customers by clicking the “Generate document” button once rather than 20 times. 

Check out this article on how to generate documents in bulk.