PAYPAL_SUBSCRIPTION_CANCEL_REASON:"Canceled by merchant"
The reason sent with every POST /v1/billing/subscriptions/{id}/cancel: the
Subscriptions v1 cancel schema REQUIRES reason (1–128 chars), and the
unified CancelNativeSubscriptionInput carries none — so a fixed, factual
default rides along.
The reason sent with every POST /v1/billing/subscriptions/{id}/cancel: the Subscriptions v1 cancel schema REQUIRES
reason(1–128 chars), and the unified CancelNativeSubscriptionInput carries none — so a fixed, factual default rides along.