post https://admin.sandbox.vouchery.app/api/v2.1/customers//loyalty-program/buy-voucher
To enable customers to exchange their loyalty points for a voucher, you need to send a POST request to the https://admin.sandbox.vouchery.app/api/v2.1/customers/{identifier}/loyalty-program/buy-voucher endpoint. The request should include a JSON payload that specifies the campaign ID of the voucher promotion from which the voucher should be exchanged. Once the request is processed, the points cost of the voucher will be automatically deducted.