How-To Guides21 min read
How to Handle Mid-Cycle Upgrades and Downgrades Without Double-Charging Customers
Mid-cycle upgrades, downgrades, and prorated billing stay clean when you pick one timing model and follow it all the way through. The hard part is not the arithmetic. It is choosing one control path for invoice timing, event handling, and customer communication, then using it consistently enough that one plan change does not turn into two charges or a charge plus a stray credit.
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