For AI agents: visit https://docs.midtrans.com/llms.txt for an index of all pages formatted in Markdown and endpoints in OpenAPI. Append .md to any documentation page URL to get its markdown version.
Update subscription's next charge schedule. Timestamp of schedule must be in yyyy-MM-dd HH:mm:ss Z +Timezone format. The value must be after the current time. Date should also be later than the created date/last charged date + interval, if you're updating an active subscription. Can also be used to reactive expired subscription.
