Bulk create discount codes

The merchant needs to bulk create unique discount codes.

"we work with different platforms where users receive a monthly allowance by their employer. the users can use that money to spend in different online shops. since we get paid through the platform, they hand out dicount codes to their users who in turn buy these products directly through our shop with a discount code provided. that's why we need multiple unique discount codes. we are currently using another app for that, but that app doesn't allow us to create codes that combine order and shipping discount"