Confirm If A Chargebee Customer Has Already Purchased An AddOn

A workaround to overcome Chargebee's less-than-ideal querying options and non-existing email uniqueness constraint

This post contains affiliate links at no cost to you. I got to work with Chargebee integration recently, and my overall experience was good. However, I felt two obvious things were missing. First, email is not unique in Chargebee. [Read More]