Optionalinvoice_OptionalmetadataSet of key-value pairs that will declaratively set metadata on Subscriptions generated from this payment link. Unlike object-level metadata, this field is declarative. Updates will clear prior values.
Optionaltrial_Integer representing the number of trial period days before the customer is charged for the first time. Has to be at least 1.
Optionaltrial_Settings related to subscription trials.
All invoices will be billed using the specified settings.