Customers
Get subscriptions for customer by external ID
Returns all subscriptions for a customer looked up by external_id, with line-item meters and entitlements attached (no pagination).
get/customers/external/{external_id}/subscriptions
Path parameters
external_idstring required
Customer External ID
Query parameters
expandstring
Comma-separated fields to expand: subscription_line_items, subscription_line_items.meters, entitlements, plan, customer
Response
OK