[DEPRECATED - Please use GET /accounts/customer/:customerId instead] Include accounts associated with the customer

[DEPRECATED - Will be returned by default] Include associated persons (e.g., ultimate beneficial owners, control persons) of the customer

[DEPRECATED - Will be returned by default] Include documents (e.g., government IDs, proof of address) of the customer and associated persons

[DEPRECATED - Please use GET /payments/customer/:customerId instead] Include payment history of the customer

Include available payment rails for the customer. Returns rail availability structured by country/rail with source and destination statuses based on provider approvals.