We all need such tactics rn! Billing is still quite a pain, especially usage-based, when you're growing fast and iterating on your pricing.

Another significant pain is cash collection: it takes too much time for poor results and antagonizes customers. + there's a compounding effect of your uncollected invoices every month to the point where you end up writing off invoices... At Upflow (YC W20), we consider that MRR should be what you collect, not what you invoice. That's why we help companies collect their cash faster with our 2 click integrations to your invoicing tool and customer payment portals.

YC companies can actually benefit from a great discount right now => look for it in Bookface.