Changing the manual expiration time

Make your payments expire either faster or slower!
Every Pay domain defines a number of days after which, if a payment is still pending, its state will be changed to expired. This information is stored in the configuration, and is set to 30 days by default.
In order to change it to e.g. 7 days, you can do the following call using a config or administration token:
POST /config
"payment.manual_expire_time_days": "7"