oscar-id of the member. Should be the full oscar id in the form OSC12345678-01

Who owns/manages the payment method. If omitted, this is inferred from the authenticating client certificate
Note: VENDOR owner will resolve to PERSON if the hra_vendor (as inferred from the authenticating client certificate or directly set in the request) does not have a direct integration setup with Oscar.

Amount to charge

The HRA vendor administering the policy.
Optional in general: when omitted, the vendor is inferred from the authenticating client certificate. Required when submitting through a middleware/aggregator integration (a single integration that enrolls on behalf of multiple HRA vendors), where it identifies which HRA vendor administers this specific policy. Must be one of the listed values; the NONE and UNKNOWN_VENDOR sentinels are not accepted.