I have one app which includes Silver/Gold subscription with monthly and annually,
if user is in annual plan, then the discount will applied to customer,
for example:
| Plan | monthly | annually(with discount) |
| Silver | 17$/month | 12$/monthly(144$/annually) |
| Gold | 49$/month | 39$/monthly(468$/annually) |
there is one scenario:
If the user is in Silver-annually, and after 6 months using the Silver-annually, he wants to go to Gold-monthly, so the discount which was given to customer must be cancelled, and based on some unused months which he has, he can buy Gold monthly: so based on the following:
he paid 144$ for one year,
his discount must be cancelled( so the price will be 17$/monthly) because of new subscription (Gold-monthly):
for all first 6 months: 17 * 6 = 102, so now user will be credited 144-102 = 42$ based on our custom proration,
now based on 42$, he can register (42/49) * 30 = 25 days for Gold-monthly,
I wan to know, how I can handle it in my code?
because in the https://shopify.dev/api/admin-graphql/2022-04/mutations/appSubscriptionCreate I checked that we dont have update on subscription, so I need to cancel, and then I create the new subscription?
or instead of cancelling the subscription, I need to use the shopify contract create/update (https://shopify.dev/api/admin-graphql/2022-07/mutations/subscriptionContractCreate )?
if there is one example in code, I will be thankful,
thanks,
