When the plan associated with a subscription changes during the billing period, the customer may be billed twice for the same day. For example:
  • On 1 November, plan A is assigned to the customer;
  • On 20 November, customer upgrades to plan B;
  • Result: plan A is billed for the period 1 November to 20 November, and plan B is billed for the period 20 November to 30 November.
In this scenario, the customer is billed twice for 20 November. We want to avoid this situation.
Created by Mathieu Déjean
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