Allow subscribers to change volume...

[Marknz1]

I want to charge customers whatever they like for as long as they like....

Ive set product price at $1

how can I make this so that they can change volume from 1 unit to anything they like?

NOTE: This is a subscription, not a product

[PayPal_JonK]

Hello @Marknz1, 

Thanks for visiting PayPal's Community Forum. I found the following resource on Subscriptions in our Developer Tools & Resources.  

I hope that helps!

 - Jon K