GrimmityGrammity-Subscription

[tropic breach]

I recommend this "Pricing models" Doc. It has a section Volume-based pricing: https://stripe.com/docs/products-prices/pricing-models#volume-based-pricing

Generally I think what you do is possible. $0.1 per unit, and let your user specify the volume

[sweet hare]

Okay, thanks for the prompt answer. I think that validation is enough for me to focus my doc readings.