Downgrading from an annual plan to a monthly plan results in the deferred cancellation of the merchant's current app subscription.

[clydesantiago]

Expected Behavior

When a merchant subscribes to the annual plan and then subscribes to the monthly plan, the next billing_on (API response) should be the current date (given that there are no trial days).

Current Behavior

When a merchant subscribes to the annual plan and then subscribes to the monthly plan, the next billing_on is next year. If we credit/refund the whole year, the user will be able to use the app for the entire year for free.

Failure Information

This happens in laravel-shopify/src/Actions/GetPlanUrl.php:79.

Steps to Reproduce

1. The merchant accidentally subscribes to the annual plan and asks for a refund/credit.
2. The app owners issue a refund/app credit and cancel the current annual plan.
3. The merchant subscribes to the monthly plan.

This results in free usage for one year because we need to set the replacementBehavior to APPLY_IMMEDIATELY.

Context

• Package Version: v22.0.1
• Laravel Version: Laravel Framework 11.22.0
• PHP Version: PHP 8.3.11
• Template Engine: React

Failure Logs

[clydesantiago]

PR: #402