Vzert
Member
I am trying to integrate the PSB checkout into my saas. While reviewing the documentation, I found that I can create the customer using the API and then pass the customer id as a parameter in the checkout to prefill the data.
My question is whether there is a way to pass the subscription id as a parameter to upgrade or downgrade the plan using PSB checkout. Currently, if I only pass the customer id without the subscription id, a new subscription is created.
My question is whether there is a way to pass the subscription id as a parameter to upgrade or downgrade the plan using PSB checkout. Currently, if I only pass the customer id without the subscription id, a new subscription is created.