Enables your system to register a client’s bank account (IBAN) for Money‑Out transfers:

• Purpose: Bank details are required only for outbound transfers (Money‑Out), not for incoming payments (Money‑In) or P2P.
• Unregistering: To deactivate an IBAN, use the IbanUnregisterPut endpoint.
• Single‑account setup: If you prefer to allow only one IBAN per payment account, please contact Lemonway support.
• Validation: IBAN formats are automatically checked by our integrated validation algorithm.

Important: Whenever you see accountId in a path or body parameter, enter your wallet’s ID.